How To Fix CNVMBT328 - RFC-User is not a dialog user

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 328

• Message text: RFC-User is not a dialog user

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBT328 - RFC-User is not a dialog user ?

  The SAP error message CNVMBT328 with the description "RFC-User is not a dialog user" typically occurs in the context of Remote Function Call (RFC) connections when the user specified for the RFC connection is not a dialog user. This can happen during data migration or when using certain tools that require a dialog user for interaction.
  Cause:
  
  User Type: The user defined for the RFC connection is a service user or a communication user, which does not have dialog capabilities. Dialog users are those who can log into the SAP GUI and interact with the system.
  User Configuration: The user might not be properly configured in the SAP system to allow dialog access.
  Authorization Issues: The user may lack the necessary authorizations to perform the required actions.
  
  Solution:
  
  
  Check User Type:
  
  Go to transaction SU01 (User Maintenance) and check the user type of the RFC user.
  Ensure that the user is set as a dialog user. The user type should be set to "Dialog" and not "Service" or "Communication".
  
  
  
  Create or Modify User:
  
  If the user is not a dialog user, you can either modify the existing user to change its type or create a new dialog user specifically for the RFC connection.
  Ensure that the new or modified user has the necessary roles and authorizations to perform the required tasks.
  
  
  
  Assign Roles and Authorizations:
  
  Ensure that the user has the appropriate roles assigned that allow it to perform the required actions in the system.
  You can check the roles assigned to the user in transaction PFCG (Role Maintenance).
  
  
  
  Test the RFC Connection:
  
  After making the necessary changes, test the RFC connection again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  
  User Types in SAP:
  
  Dialog User: Can log into the SAP GUI and interact with the system.
  Service User: Typically used for background processing and does not have dialog capabilities.
  Communication User: Used for communication between systems, also does not have dialog capabilities.
  
  
  
  Transaction Codes:
  
  SU01: User Maintenance
  PFCG: Role Maintenance
  SM59: RFC Destinations (to check and configure RFC connections)
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or solutions related to this error message.
  
  
  By following these steps, you should be able to resolve the CNVMBT328 error and ensure that the RFC user is correctly configured for dialog access.