SAP Note 10716 - Entry of the partner business area.

Symptom

For active consolidation of business areas, the partner business
area is not necessarily ready for input when posting. This causes
errors during batch input (for example, when processing recurring
documents)

Cause and prerequisites

So far, the above case was not taken into account.

Solution
As of Release 2.2, the partner business area is always necessarily
ready for input if the consolidation of business areas is active.
Changes to the trading partner in the document are then not
allowed.

Table TCOBF must also be maintained in the following way:
Gr1 Field name BI FI
-----------------------
PARGB <== Delete entry
:
:
036 PARGB X <== Insert entry if necessary
:

Key word: Consolidation