Fill an attachment field with a form

Hey!

So, I need to update an existing record, filling an attachment when a form is submitted.
The idea is send a form where the employee need to fill a process number field (it can’t be a list) and attach a pdf or image.

When this form is submitted, the automation verify the process number field value, find the same record in a existing table and attach the pdf/image.

I’m trying this for a while, but no success…
Is this possible?

Thanks!!

Yes, this is possible. While it is possible without a script, you can get better error handling with a script.