I am trying to place a check in checkbox field [Tests Scheduled] when 3 of 3 date fields have been populated: [MRI date], [CT date] and [Endo date]. I have tried actions and automations. I don't want form rules because these dates are entered in grid edit mode. I think a checkbox formula field will work, but I 'm not sure how to write the formula. Help please! I don't have any training in formulas, I have looked at numerous posts for possible answers without finding an answer.