How To Fix S_UNIFIED_CON090 - Subordinate communication assembly &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: S_UNIFIED_CON - Message Class for Unified Connectivity

• Message number: 090

• Message text: Subordinate communication assembly &1 does not exist

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message S_UNIFIED_CON090 - Subordinate communication assembly &1 does not exist ?

  The SAP error message S_UNIFIED_CON090 indicates that a subordinate communication assembly (SCA) specified in the system does not exist. This error typically arises in the context of SAP Process Integration (PI) or SAP Process Orchestration (PO) when the system is trying to access or utilize a communication assembly that has not been defined or is not available in the system.
  Cause:
  
  Missing Communication Assembly: The specified subordinate communication assembly (SCA) is not deployed or does not exist in the system.
  Incorrect Configuration: There may be a misconfiguration in the integration scenario or the communication channel that references the SCA.
  Transport Issues: If the SCA was recently transported from another system, it may not have been successfully imported or activated.
  Version Mismatch: The version of the SCA being referenced may not match the version available in the system.
  
  Solution:
  
  Check Deployment: Verify that the subordinate communication assembly (SCA) is correctly deployed in the SAP system. You can do this by navigating to the relevant section in the SAP PI/PO administration console.
  Verify Configuration: Review the configuration settings for the integration scenario or communication channel that references the SCA. Ensure that the correct SCA is specified.
  Import and Activate: If the SCA is missing, you may need to import it from the transport directory or re-deploy it if it was not successfully deployed.
  Check Logs: Look at the logs in the SAP PI/PO system for any additional error messages or warnings that could provide more context about the issue.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific SCA you are working with for any additional troubleshooting steps or requirements.
  Contact SAP Support: If the issue persists after checking the above steps, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to the SCA.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Documentation: Review the official SAP documentation for Process Integration/Orchestration for detailed information on communication assemblies and their configuration.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.