Solution : https://service.sap.com/sap/support/notes/166476 (SAP Service marketplace login required)
Key words :
group box 'master data display', view maintenance enter view v_t003o_co, additional key words kot2, field selection remains unchanged, status dependent field selection, parameters table/view, source code corrections, source code repairs, menu environment > events, transported order type
Related Notes :
506607 | INFO: Field sel. for int. order master data in order type |
165792 | Transport of order types without number ranges |