How To Fix ACE_MIG001 - Migration of application &1 (&2) must be performed first

ACE_MIG001 - Overview

• Message type: E = Error

• Message class: ACE_MIG - Accrual Engine migration: Messages from migration

• Message number: 001

• Message text: Migration of application &1 (&2) must be performed first

What causes this issue?

You want to use the application &V1& (&V2&).

System Response

This application is based in the new S/4HANA Accrual Engine. You need to
perform the migration of this application from the old Accrual Engine
to the new S/4HANA Accrual Engine first. You need to do this for all
company codes that are being used by this application.

How to fix this error?

Execute the <DS:SIMG.ACEV_MIG_MPROJCT>corresponding activities</> in the
implementation guide (IMG).

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ACE_MIG001 - Migration of application &1 (&2) must be performed first ?

  The SAP error message ACE_MIG001 indicates that a migration process for a specific application must be completed before proceeding with another operation. This error typically arises in the context of application migration or upgrade processes within SAP systems, particularly when dealing with SAP S/4HANA or other SAP applications that require a structured migration path.
  
  Cause:
  The error occurs when:
  
  Dependency on Migration Steps: The application you are trying to migrate or operate on has dependencies on previous migration steps that have not been completed.
  Incorrect Sequence of Operations: The migration process is being executed out of the required sequence, meaning that certain prerequisite migrations must be completed first.
  Incomplete Migration: There may be an incomplete or failed migration of the specified application, which prevents further actions.
  
  
  Solution:
  To resolve the ACE_MIG001 error, follow these steps:
  
  
  Check Migration Status: Verify the status of the migration for the application indicated in the error message. Ensure that all prerequisite migrations have