How To Fix R7B109 - Length changed, but InfoObject &1 is used as a key field in DSO &2

SAP Error Message - Details

• Message type: E = Error

• Message class: R7B - BW Metadata (InfoCube, InfoObject, InfoObject catalog)

• Message number: 109

• Message text: Length changed, but InfoObject &1 is used as a key field in DSO &2

What causes this issue?

The length of the InfoObject has been changed, but it is still used as a
key field in DataStore object &V2&<(>,<)> which also contains data.

System Response

The check returned an error.

How to fix this error?

Reset the length change.

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 R7B109 - Length changed, but InfoObject &1 is used as a key field in DSO &2 ?

  The SAP error message R7B109 indicates that there is a mismatch in the length of an InfoObject that is being used as a key field in a DataStore Object (DSO). This typically occurs when the length of the InfoObject has been changed after it has already been used in a DSO, which can lead to inconsistencies in data storage and retrieval.
  Cause:
  
  Change in InfoObject Length: The primary cause of this error is that the length of the InfoObject (e.g., a characteristic) has been modified in the data dictionary after it has been defined as a key field in the DSO.
  Data Model Changes: Changes in the data model, such as altering the structure of InfoObjects or DSO, can lead to this error if the key fields are not properly aligned.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Revert the Length Change: If possible, revert the length of the InfoObject back to its original value. This is the simplest solution if the change was made in error.
  
  
  Adjust the DSO: If you need to keep the new length of the InfoObject, you will need to adjust the DSO:
  
  Remove the InfoObject from the DSO: Temporarily remove the InfoObject from the key fields of the DSO.
  Activate the DSO: Activate the DSO after removing the InfoObject.
  Re-add the InfoObject: Add the InfoObject back to the DSO with the new length.
  Activate the DSO Again: Activate the DSO again to ensure that the changes are applied.
  
  
  
  Check Dependencies: Ensure that there are no other objects or processes that depend on the InfoObject or DSO that might be affected by these changes.
  
  
  Data Migration: If data has already been loaded into the DSO, you may need to consider data migration strategies to ensure that existing data is not lost or corrupted.
  
  
  Testing: After making changes, perform thorough testing to ensure that the DSO and InfoObject are functioning correctly and that there are no further issues.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or solutions for this specific error.
  Documentation: Review SAP documentation regarding InfoObjects and DSOs to understand best practices for managing changes in data models.
  Transport Requests: If changes are made in a development environment, ensure that they are properly transported to production following your organization's change management processes.
  
  By following these steps, you should be able to resolve the R7B109 error and ensure that your DSO and InfoObjects are correctly configured.