Related Questions:
Where do I adjust my Group Rate?
Answer:
The moment you select a rate the pricing is fetched live from Mews and shown in the room block grid. Once a group is synced with Mews you cannot change to a different rate
You can change the pricing, but if you selected the wrong rate and clicked save, you’ll need to mark the group as “Lost” to delete it in Mews, then delete the group in ET, and start fresh.