How To Fix ACM343 - First stack element is not the supplied instance (Stack is inconsistent)

SAP Error Message - Details

• Message type: E = Error

• Message class: ACM - Message-Class for all ACM functions/exceptions

• Message number: 343

• Message text: First stack element is not the supplied instance (Stack is inconsistent)

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 ACM343 - First stack element is not the supplied instance (Stack is inconsistent) ?

  The SAP error message ACM343, which states "First stack element is not the supplied instance (Stack is inconsistent)," typically occurs in the context of the SAP Application Control Management (ACM) or during the execution of certain processes that involve stack management. This error indicates that there is an inconsistency in the stack data structure, where the first element of the stack does not match the expected instance.
  Causes:
  
  Data Corruption: The stack may have been corrupted due to an unexpected termination of a process or a system crash.
  Incorrect Configuration: Misconfiguration in the application or system settings can lead to inconsistencies in the stack.
  Concurrent Processing: If multiple processes are trying to manipulate the same stack simultaneously, it can lead to inconsistencies.
  Software Bugs: There may be bugs in the application code that lead to improper handling of stack operations.
  
  Solutions:
  
  Restart the Process: Sometimes, simply restarting the process that generated the error can resolve temporary inconsistencies.
  Check