How To Fix CI303 - Ya se está tratando la instrucción

SAP Error Message - Details

• Message type: E = Error

• Message class: CI - Plant maintenance task list messages

• Message number: 303

• Message text: Ya se está tratando la instrucción

¿Qué causa este problema?

You selected a general maintenance task list which is being edited
either by you in another mode or by another user.

Respuesta del sistema

The system locks any further editing calls until the editing that is
currently active has been completed.

¿Cómo arreglar este error?

Check whether you called up the task list yourself in another mode. If
so, continue processing it there.
If another user is editing the task list, wair till that person has
finished.

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