Reporting transfers of stock under an Employee Stock Purchase Plan on Form 3922

[ERISA-Bubs]

We have an ESPP that has offering periods that go from the first to the last day of each month. Over the offering period, we deduct money from paychecks. On the last day of the month, the stock is purchased.

Our provider (etrade) reports that "grant date" and the "exercise date" as both being on the last day of the month. They are not easily able to report on Form 3922 that the grant date (Box 1) is the first of the month and the exercise date (Box 2) is the last day of the month. Rather, they'd like to use the last of the month for both the grant date and the exercise date.

Is there any problem with reporting both the grant date and exercise date as the last day of the month?

If we can get comfortable doing it this way this year, should we keep it that way for 2016, or should we try to get etrade to change it going forward?

NOTE: The purchase price under the ESPP is 85% of the fair market value on the purchase date.