While speaking with many liquor store owners in Washington State, they expressed to me that their current point of sale software doesn't do a very good job of handling wholesale sales. This is fairly common with liquor stores in many states - you have both retail sales as well as wholesale sales to bars and restaurants.
The Cloud Retailer point of sale software can handle wholesale sales as well as accounts receivable if you extend credit to your wholesale customers.
Here is a very brief video overview:
For more information, please visit www.cloudretailer.com or contact them at firstname.lastname@example.org