Search the module Web POS stock validation in the Module Management window (Add Modules tab) in the backoffice. Install it. Note that this is a commercial module.
More info: Module management
Allow Negative Stock
To enable allowance of negative stock, go to the client window and navigate to the tab Client - Information and tick the checkbox Allow Negative Stock.
You can also configure the system to allow negative stock depending on the Store. If you want to enable WEBPOS to allow or not negative stock at Organization level you have to go the window Client - Information and tick the checkbox Manage negative stock at organization level.
Once you have configured the Client, you are ready to allow or not negative stock at Organization level. Go to Organization - Information window and tick or not the check Allow Negative Stock depending on your needs.
Disable stock validation
For convenience there is a preference (from the versions higher than 1.1.303) to disable stock validation for specific organizations or users. See the screenshot below for the preference definition.
The module will work in silent mode until the user tries to sell a product with insufficient stock. In this situation - and depending on the configuration of the Allow Negative Stock functionality - a message will appear that prompts the user to choose among two options.
- Negative stock is allowed:
- Proceed: the product (or new quantity) will be added to the ticket
- Cancel: the product (or new quantity) will not be added to the ticket
- Negative stock is not allowed:
- OK: the product (or new quantity) will not be added to the ticket.
If you want to skip the stock validation for a product, you should unmark the field "Stocked" located in the product tab.