1. There are many brands of purchase, sale and inventory software. Generally, purchase, sale and inventory software supports retail POS and all have retail POS interfaces.

2. Invoicing software is also divided into industry types. For example: food (manage shelf life), clothing (color, size, season, brand), IT (serial number), each industry has different management methods and software functions.

3. The relatively easy-to-use brand software includes: UFIDA Software, Kingdee Software, Guanjiapo Software, Suda Software and other brands. Search on Baidu and there are many purchase, sales and inventory software that are specific and applicable. You will know the results only after you install the software and try it out.