How To Fix E0309 - EDI: This type of processing is not supported for transmission medium 'A'

E0309 - Overview

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 309

• Message text: EDI: This type of processing is not supported for transmission medium 'A'

What causes this issue?

Processing of NAST records with the transmission medium 'A' is only
supported for function modules with the 3.0 interface.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Contact your system administration.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0309 - EDI: This type of processing is not supported for transmission medium 'A' ?

  The SAP error message E0309, which states "EDI: This type of processing is not supported for transmission medium 'A'," typically occurs in the context of Electronic Data Interchange (EDI) when there is an issue with the configuration or the type of processing being attempted for the specified transmission medium.
  
  Cause:
  
  
  Incorrect Transmission Medium: The error indicates that the processing type you are trying to use is not compatible with the specified transmission medium 'A'. In SAP, transmission medium 'A' usually refers to the use of EDI via the SAP Application Link Enabling (ALE) framework.
  
  
  
  Configuration Issues: There may be a misconfiguration in the EDI settings, such as the partner profile, message type, or the processing type defined for the EDI communication.
  
  
  Unsupported Message Type: The message type you are trying to process may not be supported for the specified transmission medium.
  
  
  Incompatible Settings: The settings in the partner profile (e.g., the message type, output type,