First you need to create a custom field by going to Settings > Custom fields. It needs to be created for products, the type should be “Single line text” and the name should be “Quantity”.
Next, create for every graduated price a product with a unique ID. You can do this by clicking on the plus sign under Products. Add the quantity you want to offer your product to the custom field.
Afterwards you can search for the product when creating a quotation or invoice.
Clicking on “Search all results” brings you to you a pop-up with an overview of all products including the custom field in order to be able to differentiate. Choose the right price and fill in the correct quantity.
Customer support service by UserEcho