Is it possible to validate entered data against a data set?

Hi,

I’m exploring whether the following real-time data validation use case is possible on KOBO:

-I assign unique tag numbers (e.g., 12345678) to bags and seal them.
-A colleague at a different location receives the bags and inputs the tag number and weight into a form.
-I would like to trigger an error message if the entered tag number has already been used.

I can provide the list of previously used tag numbers either through a file or via an API.

Thanks in advance for your help!

Hi @rci, Kal provided an amazing workaround for checking duplicate data entry in a post, maybe you can start in here and look if it fits your needs:

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