Since this info is already in OR, when the booking comes in grab the channel rate for each date and record it for reporting or downloading. After all, with dynamic pricing the rates change mostly every ays, some times multiple in a day.
This would be very useful for highly optimized pricing going forward. So many ways it could be used.
Now, for those of us who do it, we record it manually.
Duplicate of request at https://www.ownerreservations.com/forums/requests/add-field-that-lists-rent-rate-per-night