How To Fix 37564 - Only one of two elements & is in the loop (cannot be tranformed)

37564 - Overview

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 564

• Message text: Only one of two elements & is in the loop (cannot be tranformed)

In the selected area, which is part of a loop block, you attempted to
convert screen fields to checkboxes or radio buttons.
Two screen elements exist for the specified field name - a template
(input/output field) and a field text. Of these, one lies inside the
loop block and the other outside.

System Response

The conversion was rejected because the field text with a button as
graphical element must form a unit and a graphical unit cannot lie
partly inside and partly outside a loop.

How to fix this error?

First, give the template or the field text a different name.
If you want to use the text field as a template header (i.e. as a
textual explanation for the intended checkbox or radio button), you
should prefix the name of the field text with an asterisk ('*').
Fields with names where the only difference is an asterisk as prefix
are treated the same at runtime for the F1 help. This means that, when
you define F1 documentation for the data element, it becomes effective
for the header.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 37564 - Only one of two elements & is in the loop (cannot be tranformed) ?

  The SAP error message 37564, which states "Only one of two elements & is in the loop (cannot be transformed)," typically occurs in the context of SAP ABAP programming, particularly when dealing with internal tables and loops. This error indicates that there is an issue with the way elements are being processed in a loop, specifically that only one of the two expected elements is present.
  
  Cause:
  
  Loop Structure: The error often arises when you are trying to loop through an internal table that is expected to contain two related elements, but only one of them is present. This can happen if the data is not structured correctly or if there is a mismatch in the expected data format.
  Data Inconsistency: The data being processed may not be consistent, meaning that the expected pairs of elements are not available in the internal table.
  Incorrect Logic: There may be a logical error in the code