How To Fix /SCWM/UI_DIFF021 - You are not authorized to start transaction &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/UI_DIFF -

• Message number: 021

• Message text: You are not authorized to start transaction &1

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/UI_DIFF021 - You are not authorized to start transaction &1 ?

  The SAP error message /SCWM/UI_DIFF021 indicates that a user is not authorized to start a specific transaction. This error typically occurs in the SAP Extended Warehouse Management (EWM) module when a user attempts to access a transaction for which they do not have the necessary authorizations.
  Cause:
  
  Missing Authorization: The user does not have the required authorization object assigned to their user profile to execute the transaction.
  Role Assignment: The user may not have the appropriate role assigned that includes the necessary authorizations for the transaction.
  Transaction Code: The transaction code referenced in the error message is not included in the user's assigned roles.
  
  Solution:
  
  
  Check User Authorizations:
  
  Use transaction SU53 immediately after the error occurs to see which authorization check failed. This will provide insight into what specific authorization is missing.
  
  
  
  Review User Roles:
  
  Go to transaction SU01 (User Maintenance) and check the roles assigned to the user. Ensure that the roles include the necessary authorizations for the transaction in question.
  
  
  
  Modify Roles:
  
  If the required authorization is missing, you may need to modify the user's roles or create a new role that includes the necessary authorizations. This can be done using transaction PFCG (Role Maintenance).
  Ensure that the role includes the relevant authorization objects and transaction codes.
  
  
  
  Consult with Security Team:
  
  If you do not have the necessary permissions to modify roles or authorizations, contact your SAP security team or administrator to request the required access.
  
  
  
  Testing:
  
  After making changes to roles or authorizations, have the user log out and log back in to ensure that the changes take effect. Then, attempt to execute the transaction again.
  
  
  
  Related Information:
  
  Authorization Objects: Familiarize yourself with the relevant authorization objects that control access to transactions in SAP EWM. Common objects include S_TCODE (Transaction Codes) and specific EWM-related objects.
  Documentation: Refer to SAP documentation or help resources for detailed information on authorization management and role configuration.
  Audit Logs: If necessary, check audit logs to see if there are any patterns or repeated authorization failures for the same user or transaction.
  
  By following these steps, you should be able to resolve the authorization issue related to the /SCWM/UI_DIFF021 error message.