No account assignment category could be determined

What causes this issue?

For the third-party purchase order item, the system tries to determine
an account assignment category that satisfies several Customizing
criteria. However, in this case no account assignment category could be
determined that satisfies all of the criteria.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

Check the settings for the account assignment categories in Customizing,
under <LS>Materials Management -> Purchasing -> Account Assignment</>:
Activity <LS>Define Combination of Item Categories/Account Assignment
Categories</>
The account assignment category must be admissible for the given item
category. <LS>Third-party</> must be assigned in the case of normal TPOP
case, and <LS>Standard </>in the case of TPOP consolidation.
Activity <LS>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 (<LS>Orders on hand</>)
must be entered in the <LS>Special Stock </>field, and the
<LS>Consumption Posting</> field must be blank.
In the field selection, accounting with a profitability segment must be
enabled (radio button <LS>Mandatory Entry</> or <LS>Optional Entry
</>selected for the <LS>Profitability Segment </>field).
Note that if several valid account assignment categories are determined,
one of them is picked at random.

Error message extract from SAP system. Copyright SAP SE.