We are facing problem in register updation for refurbishment process (through plant maintainence). During the process thay will take the material in stock with valuation type C2-Repair & issue C2 if got repaired and use C3-Scrap if material scraped. During this process mvt types 261,262,101 takes place and registers updates accordingly. So my querry is to avoid updation of registers during this process since it is internal process and it should not affect the same. Please suggest and also let me know any user exits are there for the same.