How To Fix MC029 - Relationship from & to & no longer exists

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 029

• Message text: Relationship from & to & no longer exists

What causes this issue?

The view is based on a foreign key relationship which has been deleted
since or which refers to another check table.

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?

Delete from the view the table for which the relationship is missing.
Under certain circumstances you will be able to include the table in
the view again using another foreign key relationship.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC029 - Relationship from & to & no longer exists ?

  The SAP error message MC029 ("Relationship from & to & no longer exists") typically occurs in the context of Material Master data or when dealing with the Material Requirements Planning (MRP) module. This error indicates that a relationship between two materials or objects that was previously defined is no longer valid or has been deleted.
  Causes:
  
  Deleted Relationships: The relationship between the materials (e.g., a bill of materials, routing, or other dependencies) has been deleted or is no longer valid.
  Data Inconsistency: There may be inconsistencies in the database, possibly due to manual changes or data migration issues.
  Configuration Changes: Changes in configuration settings or master data that affect how materials relate to each other.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), there may be missing or incomplete data.
  
  Solutions:
  
  Check Material Relationships: Verify the relationships between the materials in question. You can do this by checking the relevant master data (e.g., BOM, routing) to ensure that the relationship exists.
  Recreate Relationships: If the relationship has been deleted, you may need to recreate it. This can involve creating a new BOM, routing, or other relevant data.
  Data Consistency Check: Run consistency checks in the system to identify and resolve any inconsistencies. This can often be done using transaction codes like MM02 for material master or CS02 for BOM.
  Review Change Logs: Check the change logs to see if any recent changes might have caused the issue. This can help identify if a specific user or process is responsible for the deletion.
  Transport Review: If the issue arose after a transport, review the transport logs to ensure that all necessary objects were included and correctly transported.
  Consult Documentation: Review SAP documentation or notes related to the specific error message for any additional guidance or patches that may be available.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM02 (Change Material), CS02 (Change BOM), and CO02 (Change Production Order) to manage material relationships.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for MC029 in the SAP Support Portal.
  User Permissions: Ensure that the user has the necessary permissions to view and modify the material relationships.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the specific configuration and data setup in your SAP environment.