/BOBF/DAC018 - Not supported by Legacy DAC: Node &1 has multiple node categories

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOBF/DAC -

• Message number: 018

• Message text: Not supported by Legacy DAC: Node &1 has multiple node categories

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message /BOBF/DAC018 - Not supported by Legacy DAC: Node &1 has multiple node categories ?

  The SAP error message /BOBF/DAC018 Not supported by Legacy DAC: Node &1 has multiple node categories typically occurs in the context of the Business Object Processing Framework (BOPF) when there is an issue with the data model configuration. This error indicates that a node in the BOPF model is associated with multiple node categories, which is not supported by the legacy Data Access Component (DAC).
  Cause:
  
  Multiple Node Categories: The primary cause of this error is that a node in the BOPF model is incorrectly configured to belong to more than one node category. Each node should belong to a single category to ensure proper data handling and processing.
  Model Configuration Issues: There may be inconsistencies or misconfigurations in the BOPF model, particularly in the way nodes and their relationships are defined.
  Legacy DAC Limitations: The legacy DAC may not support certain configurations that are permissible in newer versions of the BOPF framework.
  
  Solution:
  
  
  Check Node Configuration: Review the configuration of the node mentioned in the error message. Ensure that it is assigned to only one node category. You can do this by:
  
  Navigating to the BOPF model in the SAP system.
  Checking the properties of the node in question.
  Ensuring that it is not linked to multiple categories.
  
  
  
  Adjust Model Relationships: If the node needs to interact with multiple categories, consider restructuring the model. You may need to create additional nodes or adjust the relationships to comply with the single category requirement.
  
  
  Consult Documentation: Refer to the SAP documentation for BOPF and DAC to understand the limitations and best practices for configuring nodes and categories.
  
  
  Testing: After making changes, test the BOPF model to ensure that the error is resolved and that the functionality works as expected.
  
  
  Seek Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with a technical expert who specializes in BOPF and DAC configurations.
  
  
  Related Information:
  
  BOPF (Business Object Processing Framework): A framework in SAP that allows for the creation and management of business objects and their processing logic.
  DAC (Data Access Component): A component that provides access to data in a structured way, often used in conjunction with BOPF.
  Node Categories: Categories that define the role and behavior of nodes within the BOPF model, such as root nodes, child nodes, etc.
  
  By addressing the configuration of the node and ensuring compliance with the framework's requirements, you should be able to resolve the error message.