In a computerised setting this is a simple matter. The customer is assigned an account number and all payments and charges enter the computer system before an invoice is issued. The credit limit is programmed into the computer for each account, and any new sale which will lead to exceeding the limit is automatically rejected.
Katika mazingira kompyuta hii ni jambo rahisi. mteja ni kwa ajili ya idadi ya akaunti na malipo yote na mashtaka kuingia mfumo wa kompyuta kabla ankara imetolewa. mikopo kikomo iliyowekwa kwenye kompyuta kwa kila akaunti, na uuzaji yoyote mpya ambayo itasababisha kupita mipaka ni moja kwa moja kukataliwa.