Component material: settlement not possible with current selection

What causes this issue?

An invoice containing non-deductible tax as well as a supplier error can
only be correctly posted if the remaining difference is zero.
This is only the case if the tax was entered manually.

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?

Select 'Calculate tax' in the item processing screen. The system
automatically calculates the tax and posts the invoice correctly.
If the tax calculated by the system and the amount entered manually
differ, return the invoice to the supplier.

Error message extract from SAP system. Copyright SAP SE.