The acknowledge line doled out goes about as a blustery day reserve for your business needs.
Here's a model:
Samantha's Gift Baskets gets a $20,000 corporate request, for which material expenses are $10,000. Samantha thought she'd saved to take on such a request, however she understands there will be a $5,000 deficit. Fortunately for Samantha, she has a $20,000 business credit extension from which she can draw that sum. She pays interest on the sum she pulled out. When the request is satisfied and paid, she can decide to proceed with the portions or pay back the rest of one go. The $20,000 recharges and is accessible for sometime later.