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.

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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