SAP Message AH379 - The last schema change could not be canceled

Diagnosis
You executed the Undo function during maintenance of the schemasteps. However, no change has been reversed.
Note the following:

  • You cannot reverse changes you made to the schema header data.

  • You can reverse changes to fields (if, for example, you selected a
  • field).
    • You can reverse the moving of lines or rates.

    • If you insert or delete rates, you cannot reverse these changes.

    • This message is also displayed if you have not yet carried out anychanges in the schema steps.