Post documents via MM to FI-CA (contract accounting)

Hello,

We use FI-CA functionality. Integration SD and FI-CA is working correctly. Is it possible to have the same or similar integration with MM or FI-AP?

When we post documents from SD, automatically documents are created in FI-CA, not in FI-AR. This is ok.

When we post documents from MM, automatically documents are created in FI-AP, but not in FI-CA. This is our problem. We need to post documents via MM to FI-CA.

Could anybody help me?

Regards