How To Fix 1X029 - Cannot delete: the link type is still used in node types

SAP Error Message - Details

• Message type: E = Error

• Message class: 1X - General hierarchy maintenance tool message

• Message number: 029

• Message text: Cannot delete: the link type is still used in node types

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1X029 - Cannot delete: the link type is still used in node types ?

  The SAP error message 1X029 indicates that you are trying to delete a link type that is still being used by one or more node types in the system. This is a common issue when managing link types in SAP, particularly in the context of SAP Master Data Governance (MDG) or similar applications where data modeling is involved.
  Cause:
  The error occurs because:
  
  The link type you are attempting to delete is currently associated with one or more node types.
  SAP enforces referential integrity, meaning that you cannot delete a link type if it is still in use, to prevent data inconsistencies.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Usage:
  
  Check which node types are using the link type you want to delete. You can do this by reviewing the configuration or data model where the link type is defined.
  
  
  
  Remove Associations:
  
  Before you can delete the link type, you need to remove its associations from all node types that are currently using it. This may involve:
  
  Modifying the data model to remove the link type from the relevant node types.
  Updating any related configurations or settings that reference the link type.
  
  
  
  
  
  Delete the Link Type:
  
  Once you have ensured that the link type is no longer in use, you can proceed to delete it from the system.
  
  
  
  Testing:
  
  After deletion, it is advisable to test the system to ensure that everything is functioning correctly and that there are no residual references to the deleted link type.
  
  
  
  Related Information:
  
  Documentation: Refer to the SAP Help Portal or specific documentation related to your SAP version for detailed instructions on managing link types and node types.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like BP for Business Partner, MDG for Master Data Governance) that may help you navigate the data model.
  Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with a colleague who has experience with data modeling in SAP.
  
  By following these steps, you should be able to resolve the error and successfully manage your link types in SAP.