I have a data source based on MySql database and I would to avoid a duplicate record for the same record. I have tried to set the option for this field as “Key” but the the record is saved anyway.
What i miss?
The nature of your data source doesn’t matter in this case, it’s all about the valid-if formula you use.
There’s a ton of posts about this topic:
https://community.appsheet.com/search?q=prevent%20duplicates
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