How To Fix TT127 - Specify an application, subapplication, and component

TT127 - Overview

• Message type: E = Error

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

• Message number: 127

• Message text: Specify an application, subapplication, and component

What causes this issue?

The fields named are empty.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Select a valid value using the F4 function.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TT127 - Specify an application, subapplication, and component ?

  The SAP error message TT127 ("Specify an application, subapplication, and component") typically occurs when a user attempts to execute a transaction or function that requires specific application, subapplication, and component information, but this information has not been provided or is incomplete.
  
  Cause:
  
  Missing Parameters: The error usually arises when the required parameters (application, subapplication, and component) are not specified in the transaction or function call.
  
  Configuration Issues: There may be issues with the configuration of the application or the way the transaction is set up.
  User Input Error: The user may have overlooked entering the necessary details in the relevant fields.
  
  
  Solution:
  
  Check Input Fields: Ensure that you have filled in all required fields, specifically the application, subapplication, and component fields. These fields are often found in the initial screen of the transaction or function you are trying to access.
  Review Documentation: Consult the documentation or help files related to the specific transaction or function to understand