In most situations this will be essential to grant credit to customers. It may be essential either due to competition or because of the custom of trade. Though, when we grant credit to customers this implies that we have to finance the cost of materials for the duration of that credit. Conversely, you are financing your customers' business to the extent of the credit granted. When the business is expanding, the volume of receivables will also expand. Please notice that the requirement for financing receivable is not to the full extent of the accounts receivables as sales. You are in reality financing only to the extent of cost of goods sold out of the receivables as sales in question.