InfoPath Dev

Scenario: 1. User puts in a start date, end date, and model# 2. External Data Connection is queried for existing reservations (model, start date, end date display in a repeating table) 3. Drop-Down Box displays all the ID's for the selected Model, not just the ID's available during that time...

When using InfoPath, the default DATE data type does not have a input recognition when entering only digits such as (41315) to (4/13/15). How to change the user input automatically of number/digits into a date format?

I'm trying to figure out how to use the addDays() function within rules. The reason for this is I require a different number of days to be added depending on the result of another field. I have a StartDate, CompletionDate, RenewalPeriod and RenewalDate field. I need the RenewalDate to have a different...