How To Fix TT166 - You are not allowed to execute in & client & (client table T000)

SAP Error Message - Details

• Message type: E = Error

• Message class: TT - Extended Computer Aided Test Tool (eCATT) messages

• Message number: 166

• Message text: You are not allowed to execute in & client & (client table T000)

What causes this issue?

You are not allowed to carry out test procedures in the current client.

System Response

When the clients are created for a system, a flag can be set in the
table T000 to indicate whether or not test procedures can be executed
in this client.

How to fix this error?

Make sure that you are logged on to the correct client. Have the client
modified if necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TT166 - You are not allowed to execute in & client & (client table T000) ?

  The SAP error message TT166, which states "You are not allowed to execute in & client & (client table T000)," typically occurs when a user attempts to perform an action in a client where they do not have the necessary authorizations. This error is related to client-specific settings in SAP, particularly in the context of client administration and user authorizations.
  Cause:
  
  Authorization Issues: The user does not have the required authorizations to perform the action in the specified client. This could be due to missing roles or profiles that grant access to the client.
  Client Settings: The client may be set to a status that restricts access, such as being in a "not modifiable" state or being a production client where only certain users can perform specific actions.
  User Master Record: The user’s master record may not be properly configured for the client in question.
  
  Solution:
  
  
  Check User Authorizations:
  
  Use transaction code SU53 immediately after the error occurs to check the authorization check that failed. This will provide insight into which specific authorization is missing.
  Review the user’s roles and profiles in transaction SU01 or PFCG to ensure that the necessary authorizations for the client are included.
  
  
  
  Client Status:
  
  Verify the status of the client using transaction SCC4. Ensure that the client is not set to "not modifiable" or "production" if the action you are trying to perform requires modification rights.
  
  
  
  User Master Record:
  
  Check the user master record for the specific client using transaction SU01. Ensure that the user is assigned to the correct client and has the necessary roles.
  
  
  
  Consult with Basis Team:
  
  If you are unable to resolve the issue, consult with your SAP Basis team or system administrator. They can provide assistance in checking client settings and user authorizations.
  
  
  
  Testing in a Different Client:
  
  If possible, try to perform the same action in a different client where you have the necessary authorizations to confirm that the issue is client-specific.
  
  
  
  Related Information:
  
  Client Concept in SAP: SAP systems are organized into clients, which are separate environments within the same system. Each client can have its own data and configuration settings.
  Authorization Objects: SAP uses authorization objects to control access to various transactions and data. Understanding how these work can help in troubleshooting authorization issues.
  Transaction Codes:
  
  SU01: User Maintenance
  PFCG: Role Maintenance
  SCC4: Client Administration
  SU53: Display Authorization Check
  
  
  
  By following these steps, you should be able to identify the cause of the TT166 error and take appropriate action to resolve it.