A SAP Cloud ERP migration is a major milestone, but the ERP system is only one part of the journey. Accounts payable can have a big impact on how smoothly the move goes. With the right AP plan in place early, teams can keep invoices moving, manage compliance with more confidence, and avoid last-minute disruption at go-live.
What you need to know
Before go-live: make AP part of the migration plan
AP is often treated as a downstream process. During an ERP migration, that can create avoidable risk. Invoices still need to be captured, validated, approved, posted, and paid while systems are changing in the background.
Start by looking at how AP works today. Where do invoices get stuck? Which steps depend on manual checks? Which suppliers, countries, or invoice types create the most exceptions? These details help you see where complexity already exists before it gets carried into a new ERP environment.
From there, decide what should sit inside the ERP core and what should be handled by a dedicated AP layer. For teams managing high invoice volumes, multiple markets, or changing compliance rules, keeping AP complexity outside the ERP core can reduce customization and help protect a cleaner SAP Cloud ERP setup.
This is also the right time to plan for e-invoicing and real-time reporting requirements. Compliance deadlines do not always follow an ERP programme timeline. If they are discovered late, they can become urgent build items. If they are mapped early, they become part of a controlled migration plan.
Invoice Lifecycle Management (ILM) can support this by giving AP teams a stable way to manage invoices before, during, and after the migration. It helps improve visibility, control, and processing performance without adding unnecessary complexity to the ERP core.
During migration: keep invoice processing stable
A good migration should not be felt by suppliers. They should still know where to send invoices, what information to provide, and how the process works. The more consistent the supplier experience is, the fewer issues AP teams need to solve during cutover.
Running ILM alongside the migration can help maintain that consistency. Suppliers continue using a familiar submission route, while AP teams keep a clear view of invoice status, exceptions, and approvals as the ERP landscape changes.
During this phase, focus on simple operational signals. Track cycle time, match rate, exception volume, and invoice backlog. These metrics show whether invoices are flowing as expected or whether teams need to step in before small issues become bigger problems.
It is also worth planning extra support for the first weeks after go-live. Even well-prepared teams will see questions and exceptions. Fast issue resolution helps AP settle into the new environment with less pressure on finance, procurement, and IT.
After go-live: turn stability into progress
Once the new SAP Cloud ERP environment is live, AP has an opportunity to improve. The goal is not just to keep invoices moving. It is to make the process faster, cleaner, and easier to scale.
Set a clear target for touchless invoice processing and measure progress against it. As more invoice data flows through the platform, teams can identify patterns, reduce common exceptions, and improve automation over time.
Compliance should also become easier to manage. Instead of treating every new mandate as a separate development project, the right AP platform can help teams respond in a more repeatable and controlled way.
For organisations with more than one ERP, this approach can make future migration waves simpler too. A shared AP layer gives teams a consistent process across entities, even when the ERP landscape is still evolving.
Why it matters
AP can either support a SAP Cloud ERP migration or slow it down. The difference comes down to when AP is brought into the plan. When AP is planned early, businesses can keep the ERP core cleaner, reduce late compliance work, and give finance teams and suppliers a smoother experience. They can also build a stronger foundation for touchless invoice processing after the migration is complete.
ERP projects have go-live dates. AP value continues long after go-live through faster processing, fewer exceptions, stronger compliance, and more scalable finance operations.
Read the full breakdown on the Basware blog →
