How To Fix 5P421 - & Beginning of function & missing

5P421 - Overview

• Message type: E = Error

• Message class: 5P - Error Messages for Schema, Pers.Calc.Rule and Feature Checks

• Message number: 421

• Message text: & Beginning of function & missing

What causes this issue?

You have tried to end a logical block with a function. However, the
logical block has not yet been started. Logical blocks represent the
functions

LPBEG ... LPEND.
Example:
.
.
ENDIF

How to fix this error?

Example:
You have forgotten to start the logical block
Insert the correct function.

Error message extract from SAP system. Copyright SAP SE.

5P421 - Details

• The SAP error message 5P421 typically indicates that there is a problem with the function module or method being called in your ABAP program. The specific message "Beginning of function & missing" suggests that the system is unable to find the definition or implementation of a function that is being referenced in your code.
  Causes:
  
  Missing Function Module: The function module you are trying to call does not exist in the system.
  Incorrect Function Name: There may be a typo or incorrect name in the function call.
  Authorization Issues: The user may not have the necessary authorizations to access the function module.
  Transport Issues: If the function module was recently transported from another system, it may not have been properly imported or activated.
  Namespace Issues: If the function module is in a different namespace, it may not be accessible in the current context.
  
  Solutions:
  
  Check Function Module Existence: Use transaction code SE37 or SE80 to check if the