How To Fix AH379 - The last schema change could not be canceled

AH379 - Overview

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 379

• Message text: The last schema change could not be canceled

What causes this issue?

You executed the <LS>Undo</> function during maintenance of the schema
steps. 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 any
changes in the schema steps.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH379 - The last schema change could not be canceled ?

  The SAP error message AH379, which states "The last schema change could not be canceled," typically occurs in the context of database schema changes in SAP systems. This error can arise during operations that involve modifying the database schema, such as adding or removing fields, changing data types, or other structural changes.
  
  Cause:
  
  Pending Changes: The error may occur if there are pending changes in the database schema that cannot be rolled back or canceled. This can happen if the system is in a state where it cannot revert to the previous schema due to dependencies or constraints.
  Locking Issues: If there are locks on the database objects that are being modified, it may prevent the cancellation of the schema change.
  Inconsistent State: The system might be in an inconsistent state due to a failed previous operation or an interrupted process.
  Transport Issues: If the schema change was part of a transport request that failed