Why is FM Account Assignment copied from Purchase Requisition to PO?

[SAPuser7]

Dear SAP-Community,

we have an issue with FM account assignment in Purchase Requisition / Purchase Order docs.

Our derivation strategy determines that for a particular group of vendors, Fund “EXLCUDED” should be derived. Postings with EXCLUDED will not be checked by availability control.

Now it happens that the final vendor is not yet known when a Purchase Requisition is created. Therefore, Fund is empty in MM document & FM document.

When transferring this Purchase Requisition into a PO, user fills out field “vendor”. Now, I expect Fund to be filled with “EXCLUDED”. However, system copies FM account assignment from Purchase Requisition and Fund remains empty in MM document (in FM document, it is EXCLUDED).

With GR, it works as expected; Fund is “EXCLUDED”.

Now, when trying to post IR, error message FICUSTOM401 (Consistency Check) arises.

In FMDERIVE, we have implemented Function Module FMDT_READ_PO_ASSIGNMENT for RMRP.

Why does the system copy FM account assignment from Purchase Requisition into PO?

Is there any other way to solve this issue?

Thanks a lot!

Best regards,

Jasmin

[iklovski]

Hi,

First of all, FM assignment is copied from predecessor document, this is a default setting. Secondly, check you derivation rule, that your fund source is overwriting the existing value. However, what puzzles me is your statement that in FM document, FM assignment is correct, while in MM tables, the data is not filled. This sounds more like a bug to me.

Regards,

Eli