Al Baraka Sudanese Bank provides the documentary credit letter service, which is a means of payment for completing foreign trade transactions. It represents an undertaking from the bank that opened the credit based on the request of the importer, according to which it undertakes to pay the value of the import documents submitted to it from the bank with which the credit letter is opened in favor of its exporting client, who is the beneficiary, according to certain conditions and controls included in the credit letter. Thus, the credit letter is a guarantee factor for the exporter to receive the value of his goods after shipment, and it also guarantees to the importer that the goods conform to the specifications he wants.