How To Fix /PF1/MSG_FH_EXC051 - No value allowed in field 'Asynch.Commun.Type' when Communic. is Synchro.

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_FH_EXC -

• Message number: 051

• Message text: No value allowed in field 'Asynch.Commun.Type' when Communic. is Synchro.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_FH_EXC051 - No value allowed in field 'Asynch.Commun.Type' when Communic. is Synchro. ?

  The SAP error message /PF1/MSG_FH_EXC051 indicates that there is a configuration issue related to the communication type in a function module or process where synchronous communication is expected, but an asynchronous communication type has been specified.
  Cause:
  The error occurs when the system is configured to use synchronous communication, but the field for the communication type (Asynch.Commun.Type) is not allowed to have a value. This typically happens in scenarios where:
  
  Incorrect Configuration: The communication type is set incorrectly in the configuration settings of the relevant function module or process.
  Data Entry Error: A user may have inadvertently entered a value in a field that should remain empty when synchronous communication is selected.
  Custom Development: If there are custom developments or enhancements, they may not be handling the communication type correctly.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the relevant configuration settings in the SAP system where the communication type is defined.
  Ensure that the communication type is set to synchronous if that is the intended mode of operation.
  If asynchronous communication is required, ensure that the system is configured to allow it.
  
  
  
  Review Field Values:
  
  Check the specific transaction or program where the error occurs.
  Ensure that the Asynch.Commun.Type field is either left blank or set correctly according to the communication type being used.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set breakpoints in the relevant function module or program to see how the values are being set and where the error is triggered.
  Look for any custom code that might be affecting the communication type settings.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific module or function you are working with. There may be known issues or additional configuration steps required.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. Provide them with the error message and context for better troubleshooting.
  
  
  
  Related Information:
  
  Synchronous vs. Asynchronous Communication: Understanding the difference between these two types of communication is crucial. Synchronous communication requires both sender and receiver to be available at the same time, while asynchronous communication allows for messages to be sent and received independently.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in checking configurations, such as SPRO for configuration settings or SE80 for reviewing custom developments.
  SAP Notes: Search for SAP Notes related to this error message or the specific module you are working with, as they may provide additional insights or patches.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /PF1/MSG_FH_EXC051.