How To Fix COM_PR_MDCHECK021 - GUID &1 only exists in COMM_HIERARCHYT, not in COMM_HIERARCHY

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_PR_MDCHECK - Consistency Checks for Product Master Data

• Message number: 021

• Message text: GUID &1 only exists in COMM_HIERARCHYT, not in COMM_HIERARCHY

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message COM_PR_MDCHECK021 - GUID &1 only exists in COMM_HIERARCHYT, not in COMM_HIERARCHY ?

  The SAP error message COM_PR_MDCHECK021 indicates that a specific GUID (Globally Unique Identifier) exists in the COMM_HIERARCHYT table but not in the COMM_HIERARCHY table. This situation typically arises in the context of SAP's Master Data Management (MDM) or when dealing with product hierarchies in the SAP system.
  Cause:
  
  Data Inconsistency: The GUID mentioned in the error message is expected to be present in both tables (COMM_HIERARCHYT and COMM_HIERARCHY). If it is only found in COMM_HIERARCHYT, it suggests that there is a data inconsistency or corruption.
  Incomplete Data Migration: If data was migrated from another system or during an upgrade, some entries may not have been transferred correctly.
  Manual Deletion: The entry in COMM_HIERARCHY may have been manually deleted or not created properly, while the entry in COMM_HIERARCHYT remains.
  
  Solution:
  
  Check Data Integrity: Verify the integrity of the data in both tables. You can run SQL queries to check for the existence of the GUID in both tables.
  SELECT * FROM COMM_HIERARCHYT WHERE GUID = 'your_guid';
  SELECT * FROM COMM_HIERARCHY WHERE GUID = 'your_guid';
  
  Recreate Missing Entries: If the GUID is missing from COMM_HIERARCHY, you may need to recreate the entry. This can often be done through the relevant transaction in SAP (e.g., using transaction codes like COMM_HIERARCHY or COMM_HIERARCHYT).
  Data Consistency Check: Use SAP's data consistency check tools or reports to identify and fix inconsistencies in the hierarchy data.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on how to resolve it.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  
  Tables Involved:
  
  COMM_HIERARCHYT: This table typically contains the hierarchy structure.
  COMM_HIERARCHY: This table contains the actual hierarchy entries.
  
  
  
  Transaction Codes: Familiarize yourself with transaction codes related to product hierarchies, such as COMM_HIERARCHY for managing hierarchies.
  
  
  Backup Data: Before making any changes, ensure that you have a backup of the data to prevent any loss.
  
  
  Testing: After making changes, test the system thoroughly to ensure that the issue is resolved and that there are no further inconsistencies.
  
  
  By following these steps, you should be able to address the error message COM_PR_MDCHECK021 effectively.