The functionality of „Locking” from submenu „Vaccines” within menu „Staff” is intended to block (temporarily take out of usage) certain lots of vaccines and unblock previously blocked lots. After selecting this function, a list of stores is displayed and by each of them there is a button "Choose".

After clicking the "Choose" button by the given store, the state of this store is displayed and a field enabling selection of it for each lot of vaccines. Marking a lot means blocking it. After entering the appropriate selection, save the changes by clicking the "Save" button.