SAP MM-FI Account Determination

This post was originally published by Ashish Sampat on ERPCorp SAP FICO Blog

Several colleagues have asked me questions about integration between MM and FI modules:

- How do postings flow from MM into FI?

- What occurs behind-the-scenes?

- Which movement types point to a specific GL Account?

- How do you change the posting to a different GL Account?

- How do you create a new movement type and assign it to a GL Account?

Many SAP practitioners – both IT and business – are in a similar situation and do not know where to start to set-up MM-FI data flow. This blog clarifies the fundamentals of MM-FI account determination.

Configuration transaction OBYC forms the core of the integration between MM, FI, and CO.

Transaction keys are used to determine general ledger accounts used by the system. You use an account modifier to differentiate account determinations, depending on the procedure. Transaction and account modifiers can be seen as a logical grouping of similar types of transactions. The transaction-account modifier, along with the valuation class, drives the accounting entries. Transaction keys are predefined in the SAP system and cannot be changed. [Click here to continue reading...]