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Insights · Integration

Which interfaces first?

With a hundred interfaces or more, the sequence is the real decision. A criteria catalogue makes it traceable, for IT and for management.

Graphic: a tree of branches in which one path to the decision is highlighted.

Criteria

Six questions for every interface.

Business criticality

What stops if the interface fails? Critical scenarios do not migrate first, but with the longest lead time.

Technical complexity

Adapters, mappings, integration processes and custom modules. The more custom work, the more effort and risk.

Volume and runtime

Message volume, size and time windows. Mass data and batch runs need their own check on the target platform.

Dependencies

Partners, upstream systems and other projects in the schedule. One interface often pulls others along.

Coverage on the target platform

Are there standard adapters, prepackaged content or tools? Then the scenario suits an early step.

Remaining lifetime

Will the connected system be replaced soon anyway? Then migration often does not pay off. Retiring is an option too.

Approach

From catalogue to wave plan.

  1. Step 1CatalogueRecord every interface with owners, partners and volumes.
  2. Step 2AssessRate each interface against the six criteria.
  3. Step 3ClusterForm groups: pilot, standard, complex, retire.
  4. Step 4PilotMigrate a few typical scenarios and measure the effort.
  5. Step 5Wave planPlan the remaining groups in waves, with dates and capacity.

With the Migration Assessment in Integration Suite, SAP provides a technical classification of PO scenarios. It does not replace the business assessment.

From our project work.

At Berliner Stadtreinigung we created such a criteria catalogue for selecting the integration scenarios, migrated the first pilot scenarios to SAP CPI and developed the operations concept for the new platform.

Related: SAP PO is ending: what platform changes teach →

SAP, SAP PO, SAP Integration Suite and S/4HANA are trademarks of SAP SE. maxClaint is an independent consultancy and not an SAP partner.

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