How To Fix >CFC053 - Incorrect subscription of a process interface: More than one function

SAP Error Message - Details

• Message type: E = Error

• Message class: >CFC -

• Message number: 053

• Message text: Incorrect subscription of a process interface: More than one function

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message >CFC053 - Incorrect subscription of a process interface: More than one function ?

  The SAP error message CFC053 indicates that there is an issue with the subscription of a process interface in the context of SAP's Process Integration (PI) or Process Orchestration (PO). Specifically, it means that the system has detected more than one function associated with a single process interface, which is not allowed.
  Cause:
  The error typically arises from one of the following scenarios:
  
  Multiple Function Mappings: There are multiple function modules or operations mapped to the same process interface, which creates ambiguity for the system.
  Incorrect Configuration: The configuration of the process interface may not be set up correctly, leading to multiple subscriptions being defined for the same interface.
  Transport Issues: If changes were transported from one system to another, it might have led to inconsistencies in the configuration.
  
  Solution:
  To resolve the CFC053 error, you can follow these steps:
  
  
  Check Process Interface Configuration:
  
  Go to the Integration Directory or the relevant configuration area in SAP PI/PO.
  Review the process interface and ensure that only one function module is subscribed to it.
  
  
  
  Remove Duplicate Subscriptions:
  
  If you find multiple subscriptions for the same process interface, remove the duplicates. Ensure that only one function module is linked to the process interface.
  
  
  
  Review Mapping:
  
  Check the mapping configuration to ensure that it is correctly set up and that there are no unintended mappings to the same interface.
  
  
  
  Transport Consistency:
  
  If the issue arose after a transport, check the transport logs and ensure that all relevant objects were transported correctly. You may need to re-transport or adjust the configuration in the target system.
  
  
  
  Testing:
  
  After making the necessary changes, test the process to ensure that the error is resolved and that the process interface functions as expected.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for Process Integration/Orchestration for detailed guidance on configuring process interfaces and subscriptions.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional troubleshooting steps related to this error.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the CFC053 error in your SAP system.