How To Fix SO390 - Error expanding private distribution lists

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 390

• Message text: Error expanding private distribution lists

What causes this issue?

A private distribution list contained in the list could not be
expanded.

System Response

The shared distributuion list cannot be saved, as it still contains
private distribution lists.

How to fix this error?

To save the shared distribution list, please delete the private
distribution lists it contains.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SO390 - Error expanding private distribution lists ?

  The SAP error message SO390, which states "Error expanding private distribution lists," typically occurs when there is an issue with the distribution list in the SAP system, particularly when trying to send emails or notifications to a group of users.
  Causes:
  
  Invalid or Inactive Users: The distribution list may contain users who are no longer active or have been deleted from the system.
  Authorization Issues: The user attempting to expand the distribution list may not have the necessary authorizations to access all the users in the list.
  Corrupted Distribution List: The distribution list itself may be corrupted or improperly configured.
  Technical Issues: There may be underlying technical issues with the SAP system or the mail server configuration.
  Missing Email Addresses: Some users in the distribution list may not have valid email addresses assigned.
  
  Solutions:
  
  Check User Status: Verify that all users in the distribution list are active and have not been deleted. You can do this by checking the user master records.
  Review Authorizations: Ensure that the user trying to expand the distribution list has the necessary authorizations to access the users in the list.
  Recreate the Distribution List: If the distribution list is corrupted, consider recreating it from scratch.
  Validate Email Addresses: Check that all users in the distribution list have valid email addresses assigned in their user profiles.
  Check System Logs: Review the SAP system logs for any additional error messages or warnings that may provide more context about the issue.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches or updates.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SU01 to check user details and SO10 to manage text elements, including distribution lists.
  SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance, especially if it appears to be a bug or requires deeper technical investigation.
  Documentation: Review SAP documentation related to email and communication management for best practices on managing distribution lists.
  
  By following these steps, you should be able to identify and resolve the issue causing the SO390 error in your SAP system.