3746412 - Error "Overwrite error: Colum at serialization XX actual column XX" while performing Migration

• While performing Migration via Migrate your Data app, the following raises in the app.
  • System error occurs when calling function module in sender system    DMC_RT_MSG    203  
  • System error (portion 0000000001, conversion object XXX, at X)    DMC_RT_MSG    39
  • XXX: Overwrite error: Colum at serialization XX actual column XX (conversion object XXX)    DMC_RT_MSG    41

• On backend system while checking the source structure on LTMOM the dump below appears.
  • Category               ABAP programming error
  • Runtime Errors         UNCAUGHT_EXCEPTION
  • Except.                CX_DMC_UI_TECHNICAL
  • ABAP: Program          CL_DMC_MC_COMP_SOURCE_FIELDS==CP
  • Application Component  CA-LT-MC

• SAP S/4HANA

CX_DMC_UI_TECHNICAL,UNCAUGHT_EXCEPTION, XXX: Overwrite error: Colum at serialization XX actual column XX, CL_DMC_MC_COMP_SOURCE_FIELDS , KBA , CA-LT-MC , S/4HANA Migration Cockpit , Problem