Changing attributes information in the OMS

about changing some information about attributes in OMS kind of users , currently the only way to change the expiration date is through a new replenishment , and those kind of changes should be able to be applied through an api service because doing another replenishment means modify the quantity of SKU that our customer already has counted at the beginning and we received a complain beacuse of it so if you can take it in considration i would be really usefull thank you and regards