How To Fix /BOBF/DAC020 - Not supported by Legacy DAC: Node &1 uses persistency mapping

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOBF/DAC -

• Message number: 020

• Message text: Not supported by Legacy DAC: Node &1 uses persistency mapping

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /BOBF/DAC020 - Not supported by Legacy DAC: Node &1 uses persistency mapping ?

  The SAP error message /BOBF/DAC020 Not supported by Legacy DAC: Node &1 uses persistency mapping typically occurs in the context of the Business Object Processing Framework (BOPF) when there is an issue with the data access layer (DAC) configuration for a specific node in a BOPF business object.
  Cause:
  
  Persistency Mapping: The error indicates that the node specified (represented by &1) is using persistency mapping, which is not supported by the legacy Data Access Component (DAC). This usually happens when the BOPF business object is trying to access data in a way that is incompatible with the legacy DAC.
  Configuration Issues: There may be a misconfiguration in the BOPF model or the underlying data model that leads to this incompatibility.
  Versioning: The BOPF model may be using features or configurations that are not supported in the version of the SAP system you are using.
  
  Solution:
  
  Check Node Configuration: Review the configuration of the node in the BOPF model. Ensure that it is set up correctly and does not use persistency mapping if the legacy DAC is being used.
  Update to New DAC: If possible, consider migrating to a newer version of the DAC that supports persistency mapping. This may involve updating your SAP system or the specific components that handle BOPF.
  Review BOPF Model: Check the overall BOPF model for any inconsistencies or misconfigurations. Ensure that all nodes and their mappings are correctly defined.
  Consult Documentation: Refer to the SAP documentation for BOPF and DAC to understand the limitations and requirements for using persistency mapping.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on how to resolve it.
  
  Related Information:
  
  BOPF (Business Object Processing Framework): A framework in SAP that allows for the creation and management of business objects, including their data access and business logic.
  DAC (Data Access Component): A component that handles data access for BOPF business objects. There are legacy and newer versions of DAC, with the newer versions supporting more advanced features.
  Persistency Mapping: A method of mapping data to a persistent storage layer, which allows for more complex data structures and relationships.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.