No tax was determined

What causes this issue?

Tax is always determined from the balance of the postings belonging to
a tax code in the case of "Calculate tax". If the balance is zero
(because the same amounts have been entered on both the debit and the
credit sides), then no tax is calculated.
Postings made only to G/L accounts are generally exempt from tax, so it
is not beneficial to carry out a gross transfer posting.

System Response

A corresponding message is generated.

How to fix this error?

Always carry out net transfer postings.
INCLUDE 'CUSTOMIZED_MESSAGE_INFO' OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.