How To Fix VN2028 - Parter function & transmission medium & not defined

VN2028 - Overview

• Message type: E = Error

• Message class: VN2 - Output Class for RSNASTCK

• Message number: 028

• Message text: Parter function & transmission medium & not defined

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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VN2028 - Details

• Certainly! Here's a detailed explanation for the SAP error message VN2028: Partner function & transmission medium & not defined:
  
  Error Message
  VN2028: Partner function & transmission medium & not defined
  
  Cause
  This error occurs when the system tries to send a message (such as an output message for purchasing documents, vendor master data, etc.) but cannot find a valid combination of partner function and transmission medium defined in the system.
  In SAP, partner functions (e.g., ordering address, invoicing party) are linked to transmission media (e.g., print, EDI, email) to determine how and where messages should be sent. If this link is missing or not maintained, the system cannot process the output and throws this error.
  
  Where it typically occurs
  
  When processing output messages for purchasing documents (POs, contracts, scheduling agreements).
  When sending vendor master data or other partner-related communications.
  During message determination and output processing.
  
  
  Solution
  
  
  Check Partner Function and Transmission Medium Configuration:
  
  Go to SPRO ? Materials Management ? Purchasing ?