How To Fix AD539 - Enter a valid log mode

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 539

• Message text: Enter a valid log mode

What causes this issue?

The program was terminated because an invalid value was entered for
the log mode. Possible values are:
O = open log, C = close log, A = collect log records.

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?

Enter a valid log mode.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD539 - Enter a valid log mode ?

  The SAP error message AD539 "Enter a valid log mode" typically occurs when there is an issue with the logging configuration in the SAP system, particularly when dealing with the logging of changes in the system. This error can arise in various contexts, such as during the configuration of change logs or when trying to execute certain transactions that require logging.
  
  Cause:
  
  Invalid Log Mode: The log mode specified in the transaction or configuration is not recognized by the system. This could be due to a typo, an unsupported log mode, or a misconfiguration.
  Missing Authorizations: The user may not have the necessary authorizations to access or modify the logging settings.
  System 
  Configuration Issues: There may be issues with the system configuration that prevent the logging mode from being recognized or applied correctly.
  
  
  Solution:
  
  
  Check Log Mode Input: Ensure that the log mode you are entering is valid. Common log modes include:
  
  "A" for "All changes"
  "C" for