How To Fix SY344 - CALL TRANSACTION ... USING cannot be nested

SY344 - Overview

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 344

• Message text: CALL TRANSACTION ... USING cannot be nested

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SY344 - CALL TRANSACTION ... USING cannot be nested ?

  The SAP error message SY344 indicates that there is an attempt to nest a CALL TRANSACTION ... USING statement within another CALL TRANSACTION statement. In SAP ABAP, the CALL TRANSACTION statement is used to execute a transaction programmatically, and it cannot be nested due to the way SAP handles transaction processing.
  
  Cause:
  The error occurs when:
  
  You have a CALL TRANSACTION statement inside another CALL TRANSACTION statement.
  This can happen if you are trying to call a transaction from within an event or a method that is already executing a transaction.
  
  
  Solution:
  To resolve this error, you need to refactor your code to avoid nesting CALL TRANSACTION statements. Here are some approaches you can take:
  
  
  Separate Transactions: Instead of nesting, separate the logic into different parts. You can call the first transaction, and once it completes, you can call the second transaction in a different context (e.g., after the first transaction has finished).
  
  
  Use BAPIs or Function Modules: