Field help (MERGEFLOW) 

When the Partner or Flow management is different in the Source and Target accounts, you receive a blocking message for the following conditions:

Source account setting

Target account result

Flowmanagement is Mandatory or Optional.

Flowmanagement is Not entered.

Flowmanagement is Not entered or Optional.

Flow management is Manditory.

Partnermanagement is Mandatory or Optional.

Partner management Not entered.

Partnermanagement is Not entered or Optional.

Partner management is Mandatory.

SEEINFOThis control is in effect only if the Chart of Accounts is associated with at least one consolidated ledger for the company.

SEEWARNINGRead the documentation for Partner initialization and Flow initialization.