How To Fix P0450 - Comando de línea '&' admitido sólo para función COPY activa

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 450

• Message text: Comando de línea '&' admitido sólo para función COPY activa

¿Qué causa este problema?

You are trying to delete a subschema. This error can occur for
various reasons:
The line command can only be used with the COPY function.
The line is inactive because the subschema has already been deleted.
This is indicated by the text 'END OF COPY' in one of the following
lines with the name of the subschema. We do not recommend that you
carry out more deletions here.
The line is inactive because the subschema has not been used before.
In this case you can activate the line and then delete the subschema.

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