How To Fix WS336 - The application log is already active (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 336

• Message text: The application log is already active (internal error)

What causes this issue?

The application log is already active. Repeat activation is not
possible.

System Response

Processing is terminated.

How to fix this error?

As a rule, this is due to an internal program error.
The external code of the application log already active is &V1&, user
&V2&, report/program &V3&.

Procedure for System Administrators

Please contact SAP.
Function module &V4& was called several times, which is not allowed.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS336 - The application log is already active (internal error) ?

  SAP Error Message:
  WS336 - The application log is already active (internal error)
  
  
  Cause:
  This error occurs when an attempt is made to start an application log that is already active. In SAP, application logs are used to record messages during processing. The system maintains a status for each log, and if a log is already open (active), trying to open or start it again without closing it first leads to this error.
  Common scenarios causing this error include:
  
  A program or transaction tries to start a log session twice without closing the previous one.
  An internal inconsistency or program error where the log status was not properly reset.
  Parallel processing or multiple calls to the logging function module without proper handling.
  
  
  Explanation:
  
  The application log is managed via function modules like BAL_LOG_CREATE, BAL_LOG_OPEN, and BAL_LOG_CLOSE.
  When a log is started, it is marked as active.
  If the program tries to start the same log again without closing it, the system