How To Fix 0H454 - Indenting key fields is not allowed

0H454 - Overview

• Message type: E = Error

• Message class: 0H - Hierarchy module

• Message number: 454

• Message text: Indenting key fields is not allowed

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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0H454 - Details

• The SAP error message 0H454 ("Indenting key fields is not allowed") typically occurs in the context of SAP ABAP programming or when working with certain SAP transactions that involve data entry or report generation. This error indicates that there is an attempt to indent key fields in a report or a data structure where indentation is not permitted.
  
  Cause:
  
  Key Fields Indentation: The error arises when key fields (fields that uniquely identify a record in a database table) are indented in a report or a data structure. In SAP, key fields must be aligned to the left without any indentation.
  Incorrect Formatting: The formatting of the output or the structure definition may have been incorrectly set up, leading to the indentation of key fields.
  Report Layout Issues: If you are using a report layout (like Smart Forms or SAPscript), the layout might be incorrectly configured to indent key fields.
  
  
  Solution:
  
  Check Report Layout: If you are