How To Fix MODEL090 - Attribute '&2' of instantiated IO class '&1' deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: MODEL - Modeling

• Message number: 090

• Message text: Attribute '&2' of instantiated IO class '&1' deleted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MODEL090 - Attribute '&2' of instantiated IO class '&1' deleted ?

  The SAP error message MODEL090 indicates that an attribute of an instantiated IO (Input/Output) class has been deleted. This typically occurs in the context of SAP's Business Object Processing Framework (BOPF) or similar modeling environments where data models are defined.
  Cause:
  The error can occur due to several reasons:
  
  Model Changes: The attribute in question may have been removed or renamed in the underlying data model or class definition after the instance was created.
  Inconsistent State: The system may be in an inconsistent state where the metadata does not match the actual data structure.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), there may be discrepancies in the model definitions.
  
  Solution:
  To resolve the MODEL090 error, consider the following steps:
  
  
  Check Model Definitions:
  
  Verify the current definition of the IO class (&1) and ensure that the attribute (&2) exists in the model. You can do this by checking the relevant data model in the SAP system.
  
  
  
  Recreate the Instance:
  
  If the attribute has been deleted intentionally, you may need to recreate the instance of the IO class to ensure it aligns with the current model definition.
  
  
  
  Transport Consistency:
  
  If the issue arose after a transport, ensure that all relevant objects (including the model and its attributes) have been transported correctly. Check for any missing or inconsistent transports.
  
  
  
  Check for Dependencies:
  
  Investigate if there are any dependencies or references to the deleted attribute in other parts of the application or model. Update or remove these references as necessary.
  
  
  
  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 state of the application at that point.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific version of the software you are using, as there may be known issues or patches available.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  BOPF Documentation: Familiarize yourself with the Business Object Processing Framework documentation, as it provides insights into how models and classes are structured and managed.
  SAP Notes: Search for SAP Notes related to MODEL090 or similar error messages, as they may contain specific fixes or workarounds.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the MODEL090 error and implement a suitable solution.