User has booked a room via RR database, he got a declined email. But when user open the RR database it shows the room is booked. And the invitees has got the invitation, they responded the invitation, user has got email from invitees.
No one has booked the room at that time.
I booked the same room in different time via calendar & RR dB, there is no issue.
As far as the invitation going out, that’s normal. The invitation will still get sent out and invitee’s will be able to process it normally even if the reservation is declined.
It sounds like there’s an orphaned reservation blocking the time, perhaps a replication/save conflict. Do a free time lookup on the room and see if it shows as already scheduled for that time slot. If so, see if you can right click on it and select “Open entry for”. This may allow you to locate and deleted the orphaned reservation.
Also, create a view to show any existing replication/Save conflicts and delete them. Here’s a technote on how to create the view:
It should be rare that a room reservation does not exist any more but is still blocking the busytime for the room. If you follow Anthonys suggestion you will be able to see if you get back “Document has been deleted” or if you can access the reservation. If you get an error trying to open it then I recommend using the tell rnrmgr check FULL/ROOM/NAME/GOES/HERE console command with your room name instead of my all caps one. That will find and remove any entry that no longer exists in the dB but that is somehow still in busytime.
Another thing to consider is that if the user was requesting the room for a repeating meeting, the Decline that comes back will list the initial meeting date at the top. This is not the Declined date/times. You can see that by expanding the “Repeats” collapsed section:
In the case above, it may look like Feb 22, 2011 was Declined. It was not Declined. Only the dates listed in the Repeats box were. (There is an SPR to improve this and avoid user confusion about which dates/times were Accepted and which were Declined.)