How To Fix 37191 - Use at least two loop blocks when selecting

37191 - Overview

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 191

• Message text: Use at least two loop blocks when selecting

What causes this issue?

You are defining or maintaining a step loop and have chosen <LS>Sel.
loop block end</>.
You must define the position and size of the loop block as a
rectangular screen area. One corner of the loop block was already fixed
and the opposing corner is determined by the cursor position.
In most cases, you define loop blocks as one-line loop blocks, but the
rectangular area is a special case since it is part of a line.
The system first attempts to create a minimal step loop from two loop
block repetitions. However, there is not enough free space for this
below the defined loop block.

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?

Place the cursor so that you define a loop block which has space for
two repetitions and repeat the function.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 37191 - Use at least two loop blocks when selecting ?

  The SAP error message 37191 ("Use at least two loop blocks when selecting") typically occurs in ABAP programming when you are trying to perform a SELECT statement that requires the use of nested loops but you have not defined them correctly. This error is often encountered when working with internal tables and trying to process data in a way that requires multiple iterations.
  
  Cause:
  The error arises when:
  
  You are attempting to select data from a database table and process it in a nested manner (e.g., using a loop inside another loop) but have not structured your code to include at least two loop blocks.
  The logic of your program expects to handle multiple sets of data, but the way the loops are defined does not meet the requirement for nested processing.
  
  
  Solution:
  To resolve this error, you need to ensure that your ABAP code includes at least two loop blocks when performing the selection. Here’s