How To Fix USMD1B040 - Change requests must be adjusted because data model &1 has been modified

USMD1B040 - Overview

• Message type: E = Error

• Message class: USMD1B - Meldungen: MDF Anschluss

• Message number: 040

• Message text: Change requests must be adjusted because data model &1 has been modified

What causes this issue?

The modification of the data model (due to the addition of elements)
requires an adjustment of the access class for the reuse active area
and, subsequently, the adjustment of dependent change requests.

System Response

As long as (a) you have not extended the access class for the reuse
active area and hence the mapping of fields in the reuse active area to
the fields in the staging area, in particular, and (b) you have not
subsequently adjusted the dependent change requests, the system does not
allow you to make further changes in the data model, nor create new
change requests with regards to a primary persistence.

How to fix this error?

Adjust the mapping in the access class for the reuse active area by
mapping the new fields added to the data model (if applicable) to the
fields in the reuse active area. You can use the
<DS:TRAN.SMT>Service Mapping Tool (SMT)</> to edit the mapping.

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

If the data model BP or a custom data model that uses the same reuse
active area was enhanced, run the
<DS:TRAN.SMT>Service Mapping Tool (SMT)</> to adjust the mappings
BP_BP_CENTRL_2API and BP_BP_CENTRL_2STA.

Afterward, adjust the affected change requests by choosing the
respective function in the activity 'Edit Data Model'.
The changes that are executed must also be executed in all target
systems linked to the transport of the data model change - <ZH>
especially in live systems</>. Only then can you again create new change
requests in those target systems after the data model is changed. Before
those changes are executed, you also cannot make additional local
changes to the same data model.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD1B040 - Change requests must be adjusted because data model &1 has been modified ?

  The SAP error message USMD1B040 indicates that there have been changes made to the data model in the SAP system, which necessitates adjustments to the change requests associated with that data model. This typically occurs in the context of SAP Master Data Governance (MDG) or similar applications where data models are used to manage master data.
  
  Cause:
  The error is triggered when:
  
  The underlying data model (e.g., fields, structures, or relationships) has been modified after change requests were created.
  The changes could include adding or removing fields, changing data types, or altering relationships between entities.
  The system requires that all change requests be aligned with the current version of the data model to ensure data integrity and consistency.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Adjust Change Requests:
  
  Go to the change request that is causing the error.
  Review the changes made to the data model and identify what needs to be adjusted in the change request.
  Make