As explained in the How it works article, you can use components such as NUMBER to collect data from the smartphone.
The NUMBER component will open a dialog box with a numeric keyboard, like this:
Suppose that you want to collect the quantity of a product from the smartphone.
You can do it by adding a NUMBER component to your output template:
Then, when you scan a barcode, the app will open a dialog box with a numeric keyboard.
See it in action:
Filters allow you to validate the input using regular expressions.
If you want to collect only positive numbers, you can use the following filter:
This way it will accept
315151, etc. but it will not accept
Don't know how to use regular expressions?
AI can generate then for you, see this 2-minute video: