How To Fix /PM0/ABB_MESSAGES821 - LOB implementation of entity &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/ABB_MESSAGES -

• Message number: 821

• Message text: LOB implementation of entity &1 does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/ABB_MESSAGES821 - LOB implementation of entity &1 does not exist ?

  The SAP error message /PM0/ABB_MESSAGES821 indicating that "LOB implementation of entity &1 does not exist" typically arises in the context of SAP's Logistics and Asset Management modules, particularly when dealing with Large Object (LOB) data types. This error suggests that the system is trying to access or manipulate a LOB entity that has not been properly defined or implemented in the system.
  Causes:
  
  Missing LOB Implementation: The specific entity referenced by &1 does not have a corresponding LOB implementation in the system.
  Configuration Issues: There may be configuration issues in the system that prevent the LOB from being recognized or accessed.
  Transport Issues: If the system has recently undergone a transport of changes, the LOB implementation may not have been included or properly activated.
  Authorization Issues: The user may not have the necessary authorizations to access the LOB implementation.
  
  Solutions:
  
  
  Check LOB Implementation:
  
  Verify that the LOB implementation for the entity in question exists. This can typically be done through transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator).
  If it does not exist, you may need to create it or ensure that it has been properly transported from the development environment.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to the LOB entity. Ensure that all necessary settings are correctly defined.
  Consult the relevant documentation or configuration guides for the specific module you are working with.
  
  
  
  Transport Management:
  
  If the issue arose after a transport, check the transport logs to ensure that all necessary objects were included in the transport.
  Re-import the transport if necessary, or manually create the missing LOB implementation.
  
  
  
  User Authorizations:
  
  Ensure that the user encountering the error has the necessary authorizations to access the LOB implementation. This may involve checking roles and authorizations in transaction PFCG.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes that may address this specific error message. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can trace the execution to see where the error is being triggered and gather more context about the issue.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific module you are working with for more detailed information on LOB implementations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists and you have a support contract, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.