Once you done with creating Inventory.Now you ready to make payment. Before make payment make sure material,material group has to be updated in Fee,Fee Group and Fee Amount in master.Before go to Fee Payment menu in Admin master ,make sure material and material group has to be updated in fee,fee group and fee amount respectively in master as shown below. 1.Fee in master  2.Fee Group in master  3.Fee Amount in master  Its updated,make payment as shown below.  Once you make payment the respective material stock gets decremented. | 