The grocery business is a high-stock maintenance work where everyday stock goes in and out. For a grocery store or a supermarket, it is very necessary to have grocery pos billing software so that all business operations are streamlined.In Single User POS Software, only one person is authorized to operate the software. While in multi-user POS, more than one user can operate. Single-user POS software is used when the owner doesn’t want any other user to work on the business operations.