How To Fix 00016 - Too many nested subscreens

00016 - Overview

• Message type: E = Error

• Message class: 00 -

• Message number: 016

• Message text: Too many nested subscreens

What causes this issue?

The number of nested subscreens is limited by a system variable. This
limit is only used for security purposes and cannot usually be
exceeded.
If this limit is exceeded, there is a high possibility of a system
error.

System Response

The system responds by terminating the current transaction.

How to fix this error?

Notify SAP (Basis department) of the error.

Error message extract from SAP system. Copyright SAP SE.

00016 - Details

• The SAP error message "00016 Too many nested subscreens" typically occurs when there are too many levels of subscreens being called within a single screen in an SAP application. This can happen when a screen is designed with multiple layers of subscreens, and the system has a limit on how many nested subscreens it can handle at once.
  
  Cause:
  
  Excessive Nesting: The primary cause of this error is the excessive nesting of subscreens. Each subscreen can call other subscreens, and if this nesting exceeds the system's limit, the error will be triggered.
  Screen Design: Poor screen design or an overly complex user interface can lead to this issue, especially if the application is not optimized for user interaction.
  Program Logic: The logic in the ABAP program may inadvertently lead to deep nesting of subscreens due to loops or recursive calls.
  
  
  Solution:
  
  Review Screen Design: Simplify the screen design by reducing the number of nested subscreens. Try