The invoice inherits from upstream processes
Production orders, dispatch documents and quality releases all shape what ends up on the invoice. Fixing an invoice data problem often means changing something several steps earlier.
Manufacturing
In manufacturing the invoice is usually the last step in a chain that runs from production order through dispatch. That means the invoice data is largely determined upstream, and the compliance question becomes whether what the ERP produces at the end of that chain contains what the structured format requires.
Production orders, dispatch documents and quality releases all shape what ends up on the invoice. Fixing an invoice data problem often means changing something several steps earlier.
Manufacturing ERP instances are rarely stock. The integration question is never about the product name — it is about your specific configuration, custom fields and document types.
Call-off orders and scheduling agreements produce many deliveries against one commercial arrangement, and the referencing between documents has to be consistent.
With production, inventory and finance in one system, and years of configuration decisions embedded in it.
Where each may have its own tax registration, document numbering and process variations.
Some customers may already require particular invoice formats, which the new requirement has to coexist with rather than replace.
Establishing which of your ERP's document types are in scope, and how customisations affect the data available for mapping.
Changes to an ERP that runs the plant require proper testing environments and release discipline. The e-invoicing work has to fit that, not bypass it.
Where EDI or customer portals are already in use, the structured invoicing requirement is additional to them and the interaction needs designing.
Provider claims of ERP support should be tested against your instance, not accepted on the basis of a product name. That testing is part of selection.