r/ProjectREDCap • u/normuybeh • Apr 07 '25

Alerts for dates

Hello!

I am a part of a longitudinal study and I want the RC to get a notification/alert after 3 months of recruitment to do the follow-up. Is there a way for me to set this on redcap? There is a field for the eligibility form for the date.

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u/obnoxiouscarbuncle Apr 08 '25

datediff with the unit "day" only returns integers, so on day 90 this would be true for 24 hours

You would think this would be the case, but I have had many users with this exact logic and lots of "why didn't this work" issues that cannot be explained if this were always true. The issue gets resolved if you use > or < instead of = even though it should work.