Airtable is used to track visits to a facility.
- The facility sells 10-pass “punch cards” that expire after 10 uses.
- If the person doesn’t use the 10 punches before a specified end date, the punch card expires.
I have a base set up with 3 tables:
People is linked to Visits and Punch cards
I’m pulling an array of all dates a person visited the facility via a rollup function into the People table.
In the Punch Card table, I’m using a lookup to bring in the array.
In the Punch Cards table, I want to return the count of all visits that took place within a specified date range (the valid range of the punch card before it expires).
For example, if a person visits the facility 3 times- in April, May, and Jun, but the date range the punch card is valid is for April, the count should be 1.
Example base here: https://airtable.com/shrmvP5cBpAknjW1f