How To Fix DT452 - &-&: Structure change -> MODEFLAG set to special

DT452 - Overview

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 452

• Message text: &-&: Structure change -> MODEFLAG set to special

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT452 - &-&: Structure change -> MODEFLAG set to special ?

  The SAP error message DT452, which states "Structure change -> MODEFLAG set to special," typically occurs in the context of data dictionary changes in SAP, particularly when dealing with structures or tables. This error indicates that there is a conflict or issue related to the mode flag of a structure that has been modified.
  
  Cause:
  
  Structure Changes: The error usually arises when there are changes made to a structure (like adding or removing fields) that are not compatible with the current usage of that structure in the system.
  Mode Flag: The MODEFLAG being set to "special" indicates that the structure is in a state that requires special handling, often due to inconsistencies or conflicts in the data dictionary.
  Active Versions: If there are active versions of the structure being used in programs or function modules, and changes are attempted, it can lead to this error.
  
  
  Solution:
  
  Check Structure Changes: Review the changes made to the structure.