What does not change
Your core finance processes and the way SAP runs your business.
SAP
With SAP the technical path is well understood; the difficulty is that no two SAP instances are the same. What matters is your configuration, your custom fields, your document types and your release process — not the product name on the licence.
Your core finance processes and the way SAP runs your business.
Billing documents have to yield structured invoice data in the required format, delivered to an accredited provider, with fields that may not currently be populated.
How the extraction works against your document types, and how the change fits your existing transport and testing discipline.
The version materially changes the options available, and it is the first thing to establish.
Custom billing document types and Z-fields are normal and need cataloguing before mapping.
Each may carry its own tax registration, scope and deadline.
Not every billing document is an invoice for this purpose, and getting that boundary right early avoids rework.
Common, and usually a configuration and master-data task rather than development.
An ERP running the business cannot absorb ad hoc changes; the integration has to respect existing governance.
To be clear about what we are and are not claiming: we do not sell a pre-built SAP product or plugin. We assess your setup, select and coordinate an accredited provider, and make the connection work. Where a provider advertises SAP support, we test whether it fits your configuration rather than taking the claim at face value.