Roll Convention does not support Daily and Weekly periods

Questions Features & Bugs
1

We are trying to use daml finance for creating payment schedule. while creating schedule , when roll convention value is ‘No Roll convention’ then period value supported should be “daily(D) and weekly(W)” according to documentation . But when we are choose D and W as period , error is thrown as “daily periodic dates not supported” .And roll convention is mandatory value. Then how to create a schedule for D and W periods?

2

I’m not sure why, but looking at the source code, daily and weekly periods are explicitly not supported with roll conventions.
However, it’s easy enough to construct a daily Schedule without utilizing createSchedule function or PeriodicSchedule type. E.g.

createDailySchedule: Date -> Int -> HolidayCalendarData -> BusinessDayConventionEnum -> Schedule
createDailySchedule startDate numDays cal bdConv = 
  let
    sp d = SchedulePeriod with
      unadjustedStartDate = d
      unadjustedEndDate = addDays d 1
      adjustedStartDate = adjustDate cal bdConv d
      adjustedEndDate = adjustDate cal bdConv $ addDays d 1
      stubType = None
    in foldl (\acc i -> sp (head acc).adjustedEndDate :: acc ) [sp startDate] [1..numDays-1]

The above function takes business day convention enum as an argument, although I suppose only the Following convention makes sense with a daily schedule.
Here’s the quick test script I used to test this function.

calendar = HolidayCalendarData with
  id = "USNY"
  weekend = [Saturday, Sunday]
  holidays = [D.date 2025 Nov 27,D.date 2025 Dec 25]

testSchedule = script do
  let 
    expectedResult =
      [ SchedulePeriod with
          unadjustedStartDate = D.date 2025 Nov 25
          unadjustedEndDate = D.date 2025 Nov 26
          adjustedStartDate = D.date 2025 Nov 25
          adjustedEndDate = D.date 2025 Nov 26
          stubType = None
      , SchedulePeriod with
          unadjustedStartDate = D.date 2025 Nov 26
          unadjustedEndDate = D.date 2025 Nov 27
          adjustedStartDate = D.date 2025 Nov 26
          adjustedEndDate = D.date 2025 Nov 28
          stubType = None
      , SchedulePeriod with
          unadjustedStartDate = D.date 2025 Nov 28
          unadjustedEndDate = D.date 2025 Nov 29
          adjustedStartDate = D.date 2025 Nov 28
          adjustedEndDate = D.date 2025 Dec 1
          stubType = None
      ]
  expectedResult === reverse (createDailySchedule (D.date 2025 Nov 25) 3 calendar Following)