How To Fix IHC652 - Input channel IDoc, IDoc number is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: IHC - IHC Messages

• Message number: 652

• Message text: Input channel IDoc, IDoc number is missing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IHC652 - Input channel IDoc, IDoc number is missing ?

  The SAP error message IHC652 indicates that there is an issue with the input channel for an IDoc (Intermediate Document) where the IDoc number is missing. This error typically occurs in the context of the SAP Integrated Communication (IHC) module, which is used for communication between different SAP systems or between SAP and non-SAP systems.
  Cause:
  
  Missing IDoc Number: The primary cause of this error is that the IDoc number is not being passed or is not available in the input channel. This could be due to a configuration issue or a problem in the data being sent.
  Incorrect Configuration: The input channel may not be properly configured to handle the IDoc type or the specific data being sent.
  Data Transmission Issues: There may be issues in the data transmission process, such as network problems or incorrect mapping of fields.
  IDoc Generation Issues: The IDoc may not have been generated correctly in the sending system, leading to a missing IDoc number.
  
  Solution:
  
  Check IDoc Generation: Ensure that the IDoc is being generated correctly in the sending system. Verify that the IDoc number is being created and populated.
  Review Input Channel Configuration: Check the configuration of the input channel in the IHC settings. Ensure that it is set up to accept the specific IDoc type and that all required fields are correctly mapped.
  Monitor IDoc Status: Use transaction codes like WE02 or WE05 to monitor the status of IDocs. Look for any errors or issues with the IDoc that might indicate why the IDoc number is missing.
  Check for Data Mapping Issues: If you are using middleware or a mapping tool, ensure that the data is being correctly mapped and that the IDoc number is included in the data being sent.
  Review Logs: Check the application logs (transaction SLG1) for any additional error messages or warnings that might provide more context about the issue.
  Test with Sample Data: If possible, test the input channel with sample data to see if the issue persists. This can help isolate whether the problem is with specific data or a broader configuration issue.
  
  Related Information:
  
  IDoc Types: Familiarize yourself with the specific IDoc types being used in your scenario, as different IDoc types may have different requirements for fields.
  SAP Notes: Check SAP Notes for any known issues or patches related to the IHC module or IDoc processing that might address this error.
  Documentation: Review SAP documentation related to IHC and IDoc processing for best practices and troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or technical team for further investigation.