How To Fix EA749 - Structure of predecessor type different from passed structure

EA749 - Overview

• Message type: E = Error

• Message class: EA - IDoc Basis Messages

• Message number: 749

• Message text: Structure of predecessor type different from passed structure

What causes this issue?

You want to create a new IDoc type as the successor to another
IDoc type.
However, the structure of the predecessor IDoc is not included correctly
in the structure of the successor IDoc.
At least segment &V1& is in the wrong position.

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?

Procedure for System Administrators

Change the way in which you create the successor IDoc.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EA749 - Structure of predecessor type different from passed structure ?

  The SAP error message EA749, which states "Structure of predecessor type different from passed structure," typically occurs in the context of data processing or when working with function modules, BAPIs, or other data structures in SAP. This error indicates that there is a mismatch between the expected structure of a data type and the structure that is being passed to it.
  
  Cause:
  
  
  Data Structure Mismatch: The most common cause of this error is that the structure of the data being passed does not match the expected structure defined in the function module or BAPI. This can happen if:
  
  The fields in the structure do not match (either in name or type).
  The number of fields in the structure is different.
  The data types of the fields do not align (e.g., a field expected to be a character type is passed as a numeric type).
  
  
  
  Changes in Data Dictionary: If there have been recent changes to the