How To Fix DT178 - Field &: Type change not possible; usage in LOB handle structure &

DT178 - Overview

• Message type: E = Error

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

• Message number: 178

• Message text: Field &: Type change not possible; usage in LOB handle structure &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT178 - Field &: Type change not possible; usage in LOB handle structure & ?

  The SAP error message DT178 indicates that there is an issue with a field type change in a structure that is being used in a Large Object (LOB) handle structure. This typically occurs when you attempt to change the data type of a field in a structure that is already being used in a LOB context, which is not allowed.
  
  Cause:
  
  Field Type Change: You are trying to change the data type of a field in a structure that is already defined and used in a LOB handle structure.
  LOB Handle Structure: The structure in question is part of a LOB (Large Object) handle, which is used for handling large data types (like BLOBs or CLOBs).
  Dependencies: There may be existing dependencies or references to the structure that prevent the change.
  
  
  Solution:
  
  Check Dependencies: Before making any changes, check if the structure is being used in any LOB handle or if there are any dependencies that