Diagnosis
You have selected anapportionment unit whichis not permitted for rental units. This can be for one of threereasons:
The unit is not listed in Customizing for the apportionment units.
The unit is assigned to the rental agreement and can only be maintainedthere.
The unit has been flagged as 'Apportionment according to conditiontype" in Customizing.

Procedure
Verify your entry and correct it if necessary.
If your entry was correct, contact your system administrator.

Procedure for the system administrator
Check and correct the settings for the apportionment unit inCustomizing as required.