You need to manually track returns or amounts on credit through Excel and apply it when entering billing. That takes too much time. You apply them incorrectly sometimes.
You have to track dates to post. You have to make payments. You are doing it ineffectively. You forget to post or make payments. The impact has been negative.
It is difficult to check the status of a purchase order. You do it ineffectively.
You manually track customer information. It takes too much time.
You need to calculate pricing and discounts and enter them as separate transactions. It takes too much time. The wrong discounts get applied sometimes. This has had a negative impact.
You manually track orders. You do not use Excel. There are issues if items are not in stock. You need to wait until the stock is replenished and manually enter the order at that time.
When orders are placed, you need to enter a transaction to accept inventory, then enter the order, then fill the order through inventory. That takes too much time. You could be incurring additional shipment charges.
You need to use a third party package to print packing slips or invoices. That process entails too much work. That requires re-keying of information.
You have to manually update prices and adjustments. You cannot sell items at different prices.
You cannot sell to different customers. You need to figure each cost and enter it as a transaction.
It takes too much time. There are pricing errors too often.
You have to wait until the order is filled and then manually update inventory. That gives an inaccurate picture of inventory levels.
You manually track orders. You process back-orders ineffectively. You need to wait until the stock is replenished and then manually enter the order at that time. You keep track of which customers still need orders filled ineffectively.
You do not know when you are getting low on inventory. You run out of stock too often. This has a negative impact.