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Supplementary Account assignment and reassignment error

Dear All

We are in the process of FM-BCS implementation (with EHP4).

While executing PO Supplementary Account assignment and reassignment updation t.code (FMCT) we are getting the below error.

" Reassignment of account assignment element Fund not possible"

Message no. FMCF108


The Define Account Assignment Derivation is not compatible with the Define Derivation Strategy for Reassignment. The value VANP was determined for document no. W015014151, the reassignment strategy for account assignment element Fund. However, this was overwritten with value through the account assignment derivation of Funds Management.

System Response

The document is not processed.


Adjust the Account Assignment Derivation of Funds Management or the Define Derivation Strategy for Reassignment in such a way that they are compatible with each other.

The Purchase Order has created on Jan 2010. FM-BCS was implemented April 1st 2011 and also FM Account assignments validity date starts April 1st 2011 onwords.

Kindly suggest.

Thanks in advance




In most cases, this message is raised PROPERLY. If the user cannot make the change manually with the PO Change transaction (ME22N), then the fields will NOT be able to be changed automatically with the reassignment tool (FMCT) or with the CCF transactions (FMJ2).

Please check these instructions as possible solution:

1. Update the account assignment category to allow changes when follow

on documents have been created. Set field 'Acct.assign.changeable'

in the account assignment category to 'X'.

2. Update the field status settings for the account assignment

categories so that they are an optional entry (instead of being

hidden or display only).

If this is not possible in your organization, please open a ticket for SAP Support



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