How To Fix P0455 - Usted está procesando un esquema estándard.

SAP Error Message - Details

• Message type: E = Error

• Message class: P0 - Messages for Transactions PE01, PE02 and PE03

• Message number: 455

• Message text: Usted está procesando un esquema estándard.

¿Qué causa este problema?

This message informs you that you are attempting to edit a schema
which only exists in the standard version delivered by SAP.
There is a modification concept for schemas. If you make changes and
save them, you will only be able to see and edit this modified version
of the schema in future. If SAP then delivers an update or a new
Release, you will have to run a comparison of the modified schema
and the standard schema.

Extracto de mensaje de error del sistema SAP. Copyright SAP SE.