Customer fields must be processed uniformly for each characteristic type

What causes this issue?

You have to edit the ten customer columns for each characteristic type
uniformly in all languages. This means the number of edited columns has
to be identical in all languages.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.