Anybody knows any good document on how FI-CA is integrated with Vertex O Series as external tax systems? In our current systems, it is set up in FI-CA to update table TTXI and TTXY for tax updates for FI-CA, however, in FI-CO, the entries for tax updates are stored in ETXDCH and ETXDCI. Is this the standard SAP functionalities to update different tax tables in ECC?
We have seen some scenarios that the tax amount in billing document in CRM (which is configurated to use TTE) is different than the taxes posted to FI-CA document. Is there a tax calculation done in FI-CA when the document is passed from CRM to FI-CA?
Need some guidelines documentation on how FI-CA is integrated with external tax systems like Vertex.
Thanks,