How To Fix SDEST064 - Value &1 for RFC serialization is not permitted.

SAP Error Message - Details

• Message type: E = Error

• Message class: SDEST - Messages for RFC Destinations

• Message number: 064

• Message text: Value &1 for RFC serialization is not permitted.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDEST064 - Value &1 for RFC serialization is not permitted. ?

  The SAP error message SDEST064 indicates that there is an issue with the value assigned for RFC serialization in your SAP system. This error typically arises when the value provided for the RFC serialization parameter is not valid or not permitted.
  Cause:
  The error can occur due to several reasons:
  
  Invalid Value: The value assigned to the RFC serialization parameter is not recognized by the system. This could be due to a typo or an unsupported value.
  Configuration Issues: The RFC destination might not be configured correctly, leading to the system rejecting the serialization value.
  System Settings: The system might have restrictions on the values that can be used for RFC serialization based on its configuration or version.
  
  Solution:
  To resolve the SDEST064 error, you can take the following steps:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction code SM59 to check the configuration of the RFC destination that is causing the issue.
  Ensure that the serialization value is set correctly. The serialization value should typically be set to either 1 (for synchronous calls) or 2 (for asynchronous calls), depending on your requirements.
  
  
  
  Review the Value:
  
  Verify the value being used for RFC serialization. Ensure it is one of the permitted values as per SAP documentation or your system's configuration.
  
  
  
  Adjust System Parameters:
  
  If you have access to system parameters, check if there are any restrictions on RFC serialization values. You may need to consult with your SAP Basis team or refer to the system documentation.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve known issues related to RFC serialization.
  
  
  
  Testing:
  
  After making changes, test the RFC connection again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  RFC (Remote Function Call): This is a protocol used in SAP systems to enable communication between different SAP systems or between SAP and non-SAP systems.
  Serialization: This refers to the process of ensuring that calls to a function module are processed in a specific order, which is important for maintaining data integrity in certain scenarios.
  Transaction Codes: Familiarize yourself with transaction codes like SM59 (RFC Destinations) and ST22 (Dump Analysis) for troubleshooting.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support or your internal SAP Basis team for further assistance.