Prerequisite of FMCB_Document reassignment

Question

Hi sap guru,
The PO doc. has the wrong funds centre and from another thread i notice which we can reassignment to new fund centre by FMCB.
I tested and no document found. The reassignment is not related with closing operation. We have to fix the assignment.
I see the config "Define Derivation Strategy for Reassignment" and "Assign Strategy for Reassignment to FM Area". and i haven't customize both of them.
What is the different between "Define Derivation Strategy for Reassignment" and FMDERIVE? Should i repeat the FMDERIVE to "Define Derivation Strategy for Reassignment"?
If in the screen, system ask to input the new receiver, why we still have to make "Define Derivation Strategy for Reassignment"?
Fyi, the PO doc.has the wrong fctr because the business transaction can not read from the relevant strategy, and then read from another strategy.
thanks in advance for the response,
Dewi

Answer 1

Hi Eli and all,
I used FMCB to select document chains for reassignment (ex.GR doc), and using FMCN to select one single document. On case, they selected into update run sucessfully.
Then continue to reassignment process through tcode FMCT. However, FMCT do not process the reassignment both for FMCN or FMCB selected document.
The message "FMCF108 Reassignment of account assignment Funds centre not possible" come from document selected with FMCN, otherwise "document could not be converted due to depedency" as message come from document selected with FMCB.
The detail of FMCF108 as below:
Diagnosis
The Define Account Assignment Derivation is not compatible with the
Define Derivation Strategy for Reassignment. The value C0601002 was
determined for document no. 0500002542, the reassignment strategy for
account assignment element Funds Center. However, this was overwritten
with value C0601003 through the account assignment derivation of Funds
Management.
System Response
The document is not processed.
Procedure
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.
I am confusing to solved this issue. Please anykind suggest from you.
Regards,
Lidwina