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Modernizing payment infrastructure does not necessarily mean replacing the system that moves the money.

For many banks and large enterprises, the more important problem sits around the payment rails.

A payment may be initiated in one system, approved in another, executed through a bank or payment provider, monitored somewhere else, reconciled manually and finally recorded in an ERP.

Each individual component may work.

The weakness is the infrastructure connecting them.

That is why payment modernization should begin by asking:

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Which part of the payment lifecycle is actually limiting the organisation?

Is it initiation?

Approval?

Routing?

Execution?

Status visibility?

Reconciliation?

Exception handling?

Cross-border capability?

Or the connection between all of them?

The answer determines whether the organisation needs new payment rails, a new provider, an orchestration layer, better integrations or simply a stronger operational system around infrastructure that already works.

Across Africa's major financial markets, this question is becoming more important as national payment environments themselves modernize. Nigeria launched Payments System Vision 2028 in June 2026 around six principles: interoperability, security, inclusion, innovation, trust and collaboration. South Africa's Payments Ecosystem Modernisation Programme is similarly focused on faster, simpler, inclusive and secure payments and new shared infrastructure.

For institutions operating within those systems, modernization should not be reduced to buying a new payments platform.

It requires an architecture capable of changing with the ecosystem around it.

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Payment infrastructure is more than the payment rail

When organisations talk about payment infrastructure, they often mean the service that ultimately transfers value.

But an enterprise payment operation usually contains several layers.

1. Initiation

Where does the payment originate?

It could begin in:

• An ERP
• A mobile application
• A corporate portal
• A supplier system
• A treasury platform
• A branch
• An internal payment request

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2. Control

Before money moves, the organisation may need:

• Approval limits
• Budget checks
• Maker-checker separation
• Beneficiary validation
• Supporting documents
• Role-based permissions
• Additional approval for high-value transactions

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3. Orchestration

The organisation then needs to determine:

• Which provider should process the payment
• Which bank or account should be used
• Which rail is appropriate
• How the instruction should be formatted
• Whether another route is available if the first fails

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4. Execution

This is where the financial infrastructure actually moves or settles value.

Depending on the market and transaction, that may involve banks, switches, payment service providers, instant-payment systems, card networks or other regulated infrastructure.

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5. Status and exception handling

Once the instruction leaves the organisation, operations still need to know:

• Was it accepted?
• Is it processing?
• Did it fail?
• Was it reversed?
• Did settlement complete?
• Should it be retried?
• Does someone need to investigate?

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6. Reconciliation

The organisation must then compare the payment instruction with what actually happened at the financial provider and what has been recorded internally.

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7. Accounting and reporting

Only then can the transaction move cleanly into financial reporting, management information and the general ledger.

A modern payment architecture should connect these layers without forcing one system to perform every role.

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The Flex Payment Modernization Stack

Flex recommends assessing enterprise payment infrastructure across seven layers:

Initiate → Control → Orchestrate → Execute → Observe → Reconcile → Record

Each layer answers a different operational question.

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The strongest modernization programme does not automatically replace all seven layers.

It identifies which layers are preventing the payment operation from working as one system.

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Start with the payment journey

Before selecting technology, choose a representative payment and follow it from beginning to end.

For example:

Payment request → approval → treasury → bank instruction → processing → settlement → reconciliation → accounting

Then map:

• Every system involved
• Every user involved
• Every approval
• Every manual transfer
• Every API or file connection
• Every point where status becomes unclear
• Every possible exception
• Every reconciliation step
• Every report dependent on the transaction

This often reveals that the visible payment problem is actually somewhere else.

A company may believe it needs another payment provider when its real problem is poor routing logic.

It may blame the bank when its real issue is that failed transactions are not returned into a usable operational queue.

It may consider replacing an ERP when the real gap is reconciliation.

Modernization should begin with the transaction, not the vendor catalogue.

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Do not replace payment rails that already work

One of the most expensive assumptions in payment transformation is that modernizing the payment operation requires replacing the underlying rail or provider.

Sometimes it does.

Often it does not.

If an existing bank or payment provider:

• Moves money reliably
• Supports the required transaction types
• Meets the institution's risk and compliance requirements
• Has suitable integration capabilities
• Operates at the required scale

then the weakness may sit above or below execution.

The institution may instead need:

• Better approval workflows
• Multiple-provider routing
• Payment status visibility
• Automated reconciliation
• Exception management
• A corporate or partner portal
• Better ERP integration

In that case, replacing the execution layer can increase project scope without solving the real operational problem.

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Modernize payment orchestration before multiplying providers

As organisations grow, they often add new payment relationships one at a time.

One provider handles one transaction type.

Another supports another market.

A bank relationship is maintained for a particular subsidiary.

A new provider is added for redundancy.

Another is introduced for cross-border payments.

Eventually, applications begin integrating directly with each provider.

That architecture can become difficult to operate.

Instead of:

Application → Provider A

Application → Provider B

Application → Bank C

Application → Provider D

a payment orchestration layer can establish a more stable boundary:

Applications → Payment orchestration → Multiple providers

The orchestration layer can be responsible for functions such as:

• Provider selection
• Routing rules
• Standardised internal payment instructions
• Authentication
• Retry logic
• Status normalization
• Provider failover where appropriate
• Operational monitoring

This does not eliminate provider-specific differences.

It prevents every upstream application from having to understand them.

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Standardize the payment message internally

Payment infrastructure becomes more difficult to modernize when each system describes a payment differently.

One application uses one beneficiary structure.

Another uses another.

One provider returns "successful".

Another returns "completed".

A third returns a provider-specific code.

The organisation then spends engineering and operations time translating between systems.

A useful modernization principle is to create a canonical internal payment model.

The organisation defines what a payment means internally:

• Payer
• Beneficiary
• Amount
• Currency
• Purpose
• Reference
• Requested execution time
• Approval status
• Provider
• Provider transaction ID
• Internal transaction ID
• Processing state

Adapters can then translate between the internal model and each external provider.

This matters even more as payment systems adopt richer and more standardized messaging.

Nigeria has directed licensed payment systems toward ISO 20022, while South Africa's domestic RTGS ecosystem adopted ISO 20022 and Kenya migrated its high-value KEPSS infrastructure to the standard in 2024. CBK said the migration supports richer data and improved interoperability between domestic and international payment systems.

A modern internal architecture should be designed to preserve useful payment data rather than repeatedly reducing transactions to an amount and reference number.

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Treat payment status as a first-class capability

Many legacy payment operations are designed primarily around sending instructions.

Modern operations also need to understand what happens afterward.

A single boolean status such as:

Paid / Not paid

is rarely sufficient.

A more useful transaction state model may distinguish between:

• Created
• Awaiting approval
• Approved
• Submitted
• Accepted by provider
• Processing
• Completed
• Failed
• Reversed
• Cancelled
• Requires review

The exact states depend on the payment infrastructure involved.

What matters is that operations can distinguish them.

If every intermediate state becomes "pending", employees have to leave the system and investigate manually.

Modern payment infrastructure therefore needs both execution capability and observability.

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Build exception management into the architecture

A modern payment platform should be designed around failures as deliberately as successful transactions.

Consider:

• Bank timeout
• Invalid beneficiary
• Insufficient funds
• Duplicate instruction
• Provider outage
• Failed authentication
• Delayed settlement
• Network interruption
• Reversal
• Unknown final state

For each material exception, define:

• How it is detected
• Whether the system retries
• Whether human review is required
• Who owns the exception
• What evidence is available
• Whether approval remains valid
• How accounting is affected
• How reconciliation treats the transaction
• What closes the exception

Without these rules, the payment engine may be automated while operations remain manual.

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Reconciliation belongs inside payment modernization

A payment is not operationally complete because an API returned a success response.

The organisation still needs to determine whether the expected movement of value agrees with external settlement and internal financial records.

A mature architecture should connect:

Instruction → provider response → settlement evidence → internal record → accounting

This allows reconciliation to identify differences such as:

• Payment submitted but not settled
• Duplicate settlement
• Unexpected amount
• Missing transaction
• Reversal not reflected internally
• Internal transaction without external evidence
• Provider transaction without an internal reference

Every exception should enter a visible workflow rather than disappear into a spreadsheet.

Payment modernization without reconciliation simply moves the manual work further downstream.

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Design resilience around dependencies

A modern payment architecture may rely on several external services.

That increases flexibility, but also creates dependencies.

For every critical provider, the organisation should know:

• What happens if the provider is unavailable?
• How quickly is failure detected?
• Are transactions queued or rejected?
• Can another provider be used?
• Could switching providers create a duplicate?
• How is the final state determined after recovery?
• What happens to reconciliation?

The goal is not to make every payment instant at any cost.

It is to make every payment understandable and recoverable.

Nigeria's current payments reforms illustrate the importance of resilience at infrastructure level: the CBN states that it directed payment providers to enable dual PoS connectivity to NIBSS and UPSL to reduce downtime.

The enterprise lesson is broader: dependency and recovery behaviour should be intentionally designed rather than discovered during an outage.

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Separate payment controls from payment execution

An important architectural distinction is between:

Who is authorised to make the decision

and

Which system moves the money.

Approval rules may depend on:

• Transaction amount
• Department
• Account
• Currency
• Beneficiary
• Business unit
• Expense type
• Country
• Available budget
• Risk category

Those rules do not necessarily belong inside the payment provider.

The provider's job may simply be to execute an authorised payment instruction.

Separating control from execution can allow an organisation to change banks or providers without rebuilding the entire authority model.

It can also create one consistent approval structure across multiple payment relationships.

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Build operations tools for the people who actually run payments

Payment modernization projects often invest heavily in:

• APIs
• Processing infrastructure
• Customer interfaces

and not enough in the people responsible for operating the service.

Operations teams need tools for:

• Searching transactions
• Viewing payment history
• Understanding current status
• Reviewing provider responses
• Investigating exceptions
• Retrying eligible transactions
• Adding supporting evidence
• Escalating cases
• Viewing reconciliation status
• Auditing manual intervention

Without these tools, engineering teams become the operations interface.

A payment platform should not require a developer to query logs every time operations asks what happened to a transaction.

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Modernize in layers, not in one cutover

Payment operations are too important for unnecessary disruption.

A phased programme can reduce the scope of each change.

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Phase 1: Visibility

Create one view of payment activity across existing providers.

Do not change execution yet.

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Phase 2: Standardization

Introduce a common internal payment model and status structure.

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Phase 3: Control

Move fragmented approval and release processes into a structured workflow.

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Phase 4: Integration

Connect upstream ERP, finance and customer systems.

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Phase 5: Orchestration

Route payment instructions through a controlled integration layer.

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Phase 6: Reconciliation

Automatically compare payment instructions, provider outcomes and accounting records.

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Phase 7: Optimization

Introduce additional providers, dynamic routing, resilience improvements or new payment methods where the business case requires them.

This lets the organisation create value before the entire payment estate has been replaced.

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What payment modernization looks like in Nigeria

Nigeria should be one of the highest-priority markets for enterprise payment modernization.

The CBN's Payments System Vision 2028, launched on June 1, 2026, centers the country's next phase of payments development on interoperability, security, inclusion, innovation, trust and collaboration.

Nigeria has also moved licensed payment systems toward ISO 20022 and introduced additional resilience requirements around PoS connectivity.

For banks, fintechs and large Nigerian enterprises, modernization should therefore consider:

• Multiple bank and PSP integrations
• Richer payment messaging
• Routing and failover
• Open and partner integrations
• Transaction observability
• Failed-payment handling
• Reconciliation
• Corporate payment workflows

The opportunity is not simply to connect another payment provider.

It is to build an architecture that can accommodate the next provider without creating another disconnected workflow.

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What payment modernization looks like in South Africa

South Africa is already undertaking payment modernization at national infrastructure level.

SARB's Payments Ecosystem Modernisation Programme aims to create fast, simple, inclusive and secure digital payments and includes the development of a national payments utility and broader payment-infrastructure modernization.

South Africa has also adopted ISO 20022 in its domestic RTGS environment, while regional payment infrastructure across the SADC ecosystem is using the standard as part of modernization efforts.

For South African banks and large enterprises, this puts greater importance on:

• Architecture flexibility
• Interoperability
• Rich payment data
• Operational resilience
• Provider governance
• Real-time visibility
• Integration ownership

Modernization should prepare internal systems to participate in a payment environment that itself continues to change.

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What payment modernization looks like in Kenya

Kenya's national payments environment already combines real-time settlement infrastructure with mobile money, banks, PSPs and wider digital ecosystems. CBK operates KEPSS as the country's RTGS system and migrated it to ISO 20022 in 2024.

CBK's 2025 innovation research also points to increasing emphasis on interoperability around ISO 20022 across regional payment systems.

Regional connectivity is becoming increasingly relevant as well. In February 2026, PAPSS and Pesalink announced connectivity enabling PAPSS participants to reach banks and mobile-money operators within Kenya's Pesalink network for cross-border local-currency payments.

For Kenyan organisations, modern payment infrastructure increasingly needs to accommodate:

• APIs
• Bank transfers
• Mobile-money ecosystems
• Regional connectivity
• Multiple providers
• Rich payment information
• Cross-border requirements

A rigid provider-specific architecture will become increasingly difficult to evolve.

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What payment modernization looks like in Ghana

The Bank of Ghana publishes a National Payment Systems Strategy for 2025–2029 and has described its direction as building a safe, efficient and inclusive digital financial landscape.

For Ghanaian banks, fintechs and enterprises, useful modernization priorities include:

• Bank and PSP interoperability
• Mobile-money connectivity
• Reconciliation across providers
• Merchant and partner workflows
• Operational visibility
• Modular integration architecture

The same principle applies: modernize the layer that prevents the overall payment process from operating coherently.

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Cross-border payments change the architecture question

Payment modernization in Africa increasingly needs a regional dimension.

PAPSS describes itself as cross-border financial market infrastructure connecting African banks, payment service providers and other financial intermediaries for payments between African countries.

This has an architectural implication for businesses expanding across markets.

A company should avoid designing every country as a completely separate payment system if large parts of the workflow can be reused.

A regional payment architecture can separate:

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Shared capabilities

• Approval
• Payment initiation
• Internal payment model
• Operational dashboard
• Reconciliation framework
• Reporting

from:

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Market-specific capabilities

• Local banks
• Payment providers
• Currencies
• Payment rails
• Regulatory controls
• Settlement rules

This makes geographic expansion an integration problem rather than a complete rebuild.

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Build versus buy in payment modernization

Not every component should be custom-built.

Buy when

• The capability is mature and standardized.
• Several credible providers already solve it.
• It does not create strategic differentiation.
• The integration fits the organisation's architecture.

Examples may include specific payment rails or infrastructure services.

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Build when

• Approval rules are distinctive.
• Several payment providers need to operate as one system.
• Existing products cannot manage the exception workflow.
• Operational users need specialised tools.
• Payment status must integrate deeply with internal systems.
• Reconciliation is highly specific.
• The organisation wants ownership of the orchestration layer.

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Extend when

A strong payment platform exists but requires custom:

• Portals
• Approval workflows
• Dashboards
• Reconciliation
• Integrations

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Modernize when

Existing execution infrastructure remains valuable but the workflows around it are fragmented.

The strongest payment architecture may therefore combine several purchased services with one custom operating layer.

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What should enterprises measure after modernization?

Do not measure success primarily by whether the new platform launched.

Measure the payment operation.

Useful indicators include:

• Payment success rate
• Payment completion time
• Approval time
• Provider failure rate
• Percentage of automatically reconciled transactions
• Unresolved exception count
• Exception ageing
• Manual interventions per transaction
• Time to identify failed payments
• Time to resolve failed payments
• Cost per payment
• Provider concentration
• Number of manual data transfers
• Operational support volume

The objective is not more technology.

It is a payment operation that becomes easier to control as transaction complexity grows.

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Where Flex Enterprise Solutions fits

Flex Enterprise Solutions builds custom financial software for payments, approvals, reconciliation, reporting, customer portals and workflow automation for banks, insurers and large enterprises. Flex positions these systems around the client's process rather than requiring a fixed operating model.

That means Flex can work at the layers surrounding regulated payment infrastructure.

Depending on the project, this may include:

• Payment initiation systems
• Corporate or internal approval platforms
• Payment orchestration
• Bank and PSP integrations
• Transaction-status services
• Operations dashboards
• Exception-management systems
• Reconciliation engines
• Customer or partner portals
• ERP and accounting integrations

The objective is not to become another payment rail where regulated infrastructure already performs that job well.

It is to make the institution's payment infrastructure work as one controlled operation.

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Modern payment infrastructure should make changing providers easier

A useful test of payment architecture is this:

If the organisation needed to add or replace a payment provider tomorrow, how much of the business would have to change?

If the answer includes:

• Customer applications
• ERP processes
• Approval rules
• Reporting
• Operations workflows
• Reconciliation logic

then too much provider-specific behaviour may have spread through the architecture.

A stronger model isolates those dependencies.

The business retains its workflow.

The orchestration layer understands the provider.

The execution infrastructure moves the money.

Reconciliation confirms what happened.

Accounting records the result.

That is what modernization should achieve.

Not merely faster payments.

A payment operation that can evolve without being rebuilt every time the financial ecosystem changes.

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Frequently Asked Questions

What is payment infrastructure modernization?

Payment infrastructure modernization is the redesign or improvement of the technology and operating processes used to initiate, approve, route, execute, monitor, reconcile and record payments. It does not necessarily require replacing the underlying payment rail or provider.

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When should an enterprise modernize its payment infrastructure?

Common signs include multiple disconnected payment providers, manual approval processes, poor payment-status visibility, repeated reconciliation work, spreadsheet-based exception tracking, difficulty adding new markets or banks and growing dependence on manual system integrations.

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Does payment modernization mean replacing our banks or payment providers?

No. Existing providers can remain in place when they perform their role effectively. The organisation may instead need an orchestration, workflow, reconciliation or operational layer connecting those providers to internal systems.

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What is payment orchestration?

Payment orchestration is a software layer that coordinates payment instructions across one or more payment providers or banks. Depending on the architecture, it may handle routing, provider integrations, transaction states, retries, monitoring and failover logic.

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What is the difference between payment processing and payment orchestration?

Payment processing executes or facilitates the movement of funds. Payment orchestration determines how payment instructions interact with processors, banks or other payment infrastructure and provides a consistent operating layer across them.

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Why is reconciliation important in payment modernization?

Execution only confirms that a payment instruction has entered or passed through a provider. Reconciliation confirms that the external financial outcome agrees with the organisation's internal records and accounting. Without it, manual investigation remains necessary.

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How does ISO 20022 affect payment modernization?

ISO 20022 provides a structured financial-messaging standard capable of carrying richer payment data. Nigeria, South Africa and Kenya have all taken significant steps toward ISO 20022 adoption in their payment infrastructure. Enterprises should ensure internal systems can preserve and use richer payment information rather than relying on minimal legacy data structures.

Can one payment platform support Nigeria, South Africa, Kenya and Ghana?

Potentially, but the architecture should distinguish shared payment workflows from market-specific providers, currencies, rails and regulatory requirements. A modular design allows the common operating layer to be reused while country-specific integrations change.

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How can enterprises modernize payments without disrupting existing operations?

Start by mapping the current payment lifecycle, preserve execution infrastructure that remains reliable, introduce new visibility and workflow capabilities in stages, validate integrations and reconciliation, then transfer additional responsibilities only after the new layer is proven.

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Can Flex build a payment orchestration or reconciliation platform?

Flex Enterprise Solutions builds custom payment, approval, reconciliation, reporting, portal and integration software for financial institutions and large enterprises. The exact architecture depends on the organisation's existing banks, PSPs, ERP systems and operational requirements.

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Can Flex integrate with our existing banks, ERP and payment providers?

Flex's enterprise offering includes custom integrations and financial workflow development. Whether a particular integration is possible depends on the technical interfaces and requirements of the systems involved.

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