Is it possible to set the value of a field based on a subset of another field value? e.g. I have a national ID number that has the date of birth in the first 6 digits:
7410237098108
In the above, we can glean the date of birth as 23 October 1974 (741023). Would it be possible to set the value of a date of birth field when the user enters the full ID into the national ID field?
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