How To Fix CH317 - Program/form routine required for send direction "U"

SAP Error Message - Details

• Message type: E = Error

• Message class: CH - CAD/PP integration messages

• Message number: 317

• Message text: Program/form routine required for send direction "U"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CH317 - Program/form routine required for send direction "U" ?

  The SAP error message CH317 indicates that there is a missing program or form routine that is required for the send direction "U" (which typically stands for "Update"). This error often occurs in the context of IDoc processing or when dealing with ALE (Application Link Enabling) configurations.
  Cause:
  
  Missing Function Module: The error usually arises when the system is trying to send an IDoc or perform an update operation, but the required function module or form routine that is supposed to handle this operation is not defined or is missing.
  Configuration Issues: There may be issues in the configuration of the IDoc or ALE settings, such as incorrect settings in the partner profiles or message types.
  Transport Issues: If the system has recently undergone a transport, the required program or function module may not have been transported correctly.
  
  Solution:
  
  Check Function Module: Verify that the function module or form routine required for the send direction "U" is defined in the system. You can do this by checking the relevant configuration settings in transaction WE20 (Partner Profiles) or WE21 (Port Definition).
  Review IDoc Configuration: Ensure that the IDoc type and message type are correctly configured. Check the settings in transaction WE30 (IDoc Types) and WE81 (Message Types).
  Check Partner Profiles: In transaction WE20, check the partner profiles for the relevant logical systems to ensure that the correct message types and processing options are set up.
  Debugging: If you have access to debugging tools, you can set breakpoints in the relevant function modules to see where the error occurs and gather more information about what might be missing.
  Transport Check: If the issue arose after a transport, ensure that all necessary objects were included in the transport request and that they were imported correctly into the target system.
  Consult Documentation: Review SAP documentation or notes related to the specific IDoc or message type you are working with, as there may be specific requirements or known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the following transaction codes:
  
  WE20: Partner Profiles
  WE21: Port Definition
  WE30: IDoc Types
  WE81: Message Types
  WE02: IDoc Display
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the CH317 error and implement a solution to resolve it.