Diagnosis
For the third-party purchase order item, the system tries to determinean account assignment category that satisfies several Customizingcriteria. However, in this case no account assignment category could bedetermined that satisfies all of the criteria.

Procedure
Contact your system administrator.

Procedure for System Administration
Check the settings for the account assignment categories in Customizing,under Materials Management -> Purchasing -> Account Assignment:

• Activity Define Combination of Item Categories/Account Assignment
Categories
The account assignment category must be admissible for the given itemcategory. Third-party must be assigned in the case of normal TPOPcase, and Standard in the case of TPOP consolidation.

• Activity Maintain Account Assignment Categories

In the case of normal TPOP, a goods receipt must be allowed
In the case of TPOP consolidation, the value E (Orders on hand)must be entered in the Special Stock field, and theConsumption Posting field must be blank.
In the field selection, accounting with a profitability segment must beenabled (radio button Mandatory Entry or Optional Entryselected for the Profitability Segment field).
Note that if several valid account assignment categories are determined,one of them is picked at random.