Diagnosis
This authorization field is used in authorization objects for whichauthorizations exist.
Making a change in the authorization field with regard to the assigneddata element could lead to inconsistent authorizations.

System Response
In this case, it is only possible to make restricted changes to theauthorization field.

Procedure
Use the where-used function in transaction SU21 for the authorizationobjects that use this field, to determine the users (authorizations) andremove them.
Once there are no longer any authorizations for the authorization field,you can make a complete change.
Caution: Consider the consequences for authorization checks implementedin ABAP before continuing the process.