SAP Note 25624 - MR01: Error M8159: Tax code ...

Symptom:

M8159: Tax code & and account & not compatible.
This message is displayed when entering an invoice for a purchase order assigned to an account. The GR/IR account is given in the message.

Cause and prerequisites

The cost account from the purchase order does not contain a tax code.

Solution
Enter then tax code into the cost account. We generally recommend '- ', that is, all input tax types are allowed.

Additional key words

M8159