Different tax type can't be defined for same SCK/RE Object (&<>&)

What causes this issue?

The defined Tax Type differs from the other Tax Types defined for the
same service charge key and real estate object. This field has to
contain the same entry as the other entries, which are defined for the
same service charge key and real estate object.

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?

Modify the Tax Type in the currently processed line. If you want to
modify the Tax Type in all entries defined for the same service charge
key and real estate object, then you have to modify them at once.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.