How To Fix TT312 - Loop end without loop beginning & & & &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 312

• Message text: Loop end without loop beginning & & & &

What causes this issue?

The procedure contains an 'ENDDO' without a corresponding 'DO'.

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?

Insert the corresponding 'DO' function at the appropriate position
in the procedure.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TT312 - Loop end without loop beginning & & & & ?

  The SAP error message TT312 "Loop end without loop beginning" typically occurs in the context of ABAP programming, particularly when dealing with control structures such as loops. This error indicates that the ABAP code has a ENDLOOP statement without a corresponding LOOP statement, which leads to a mismatch in the control flow of the program.
  Cause:
  
  Missing LOOP Statement: The most common cause is that there is an ENDLOOP statement in the code that does not have a matching LOOP statement.
  Incorrect Nesting: There may be a situation where loops are incorrectly nested, leading to an ENDLOOP being reached without a corresponding LOOP.
  Code Modifications: If the code has been modified (e.g., lines added or removed), it may have inadvertently created this mismatch.
  Conditional Logic: If the LOOP statement is placed inside a conditional block that does not execute, the corresponding ENDLOOP will not have a matching LOOP.
  
  Solution:
  
  Check for Matching Statements: Review the code to ensure that every ENDLOOP has a corresponding LOOP. Each loop should be properly opened and closed.
  Indentation and Formatting: Properly indent your code to visually represent the structure of loops and conditionals. This can help identify mismatches more easily.
  Review Conditional Logic: Ensure that any LOOP statements are not placed inside conditional blocks that may prevent them from executing.
  Debugging: Use debugging tools to step through the code and identify where the flow of control is breaking.
  Code Review: If the code is complex, consider having another developer review it to catch any logical errors.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for more details on control structures and best practices.
  SAP Community: Engage with the SAP community forums for insights and similar issues faced by other developers.
  Code Examples: Look for examples of correct loop usage in ABAP to understand the proper structure.
  
  By following these steps, you should be able to identify and resolve the TT312 error in your SAP ABAP code.