Empty "Created at" and "Uniq_ID"

In my form the "created" and "uniq_id" Fields are empty, if I save the data to a db table. How can I change this behavior?

how did you configure the "Save data" action ?

My configuration:

I still need your help with this.

under "Advanced settings", enable "data source" then add 2 fields, first one should be "created", set the value to {date:}

2nd one should be "uniq_id", set the value to {uuid:}

does this work ?

This was partially successful. Everything is now OK with the date, the uniq_id is not yet working. But that's not so bad because the timestamp is unique.

what did you add in the data source, could you please attach a screenshot ?

I'm using CF7, settings are like this: