2. If you don't get it back from recipients of the product/service. The Purchasing Department should keep track from a charge in writing immediately when due.
2. If no such documents have been recovered from the recipient's product / service. The purchasing department should monitor the agency in writing promptly upon maturity stated.
2. Case did not receive such documents returned from the recipient of goods / services Purchasing department should trace from departments in writing immediately when the due as stated.