How To Fix /PF1/MSG_CONV501 - Message is not of type '01'

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_CONV -

• Message number: 501

• Message text: Message is not of type '01'

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_CONV501 - Message is not of type '01' ?

  The SAP error message /PF1/MSG_CONV501 Message is not of type '01' typically indicates an issue related to message handling in the SAP system, particularly in the context of message conversion or processing. This error can occur in various scenarios, such as when dealing with message types in IDocs, workflows, or other messaging frameworks within SAP.
  Cause:
  
  Message Type Mismatch: The error suggests that the system is expecting a message of type '01' (which usually indicates a standard message type), but it is receiving a message of a different type.
  Configuration Issues: There may be a misconfiguration in the message type settings or in the processing logic that leads to the system not recognizing the message type correctly.
  Data Format Issues: The data being processed may not conform to the expected format, leading to the system being unable to interpret it as a valid message type.
  Custom Development: If there are custom developments or enhancements in the system, they might not be handling the message types correctly.
  
  Solution:
  
  Check Message Type Configuration: Verify the configuration of the message types in the relevant transaction (e.g., WE20 for IDocs). Ensure that the message type is correctly defined and that the expected type is set to '01'.
  Review the Data: Inspect the data being processed to ensure it matches the expected format and type. If the data is coming from an external system, ensure that it is being sent correctly.
  Debugging: If you have access to the development environment, consider debugging the process to identify where the message type is being incorrectly interpreted or processed.
  Consult Documentation: Review SAP documentation or notes related to the specific message type and its handling to ensure that all necessary configurations are in place.
  Check for Custom Code: If there are any custom programs or enhancements, review the code to ensure that it is correctly handling the message types and not causing the mismatch.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as WE20 (Partner Profiles), WE21 (Port Definition), and WE30 (IDoc Types) for managing message types and configurations.
  Community Forums: Consider searching or posting in SAP community forums or SAP Community Network (SCN) for insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to engage with SAP support for further assistance.