This works very simple. thank you.
Do you know if there is a maximum amount of codes you can put in the Array validator? Will it slow down the website/form if I use for example 250,000 codes? I’ve now tested with 9999 thats seems to work fine.
I see the “Avoid duplicates” works fine as well. So basically this checks the records in the same field for used codes?
Thanks for your help so far.