When does the room reservations get sent to the various hotels from the housing portal?  I called the hotel I booked and they cannot find my reservation. 

Typically about a week before the convention. 

From the Housing page:

Attendees can modify or cancel room assignments until housing registration closes at 11:59 pm (Eastern) on July 18, 2022 (the “closing date”). After housing registration closes, hotels will download final room assignments from the registration system, charge non-refundable deposits to guest credit cards, and issue hotel reservations confirming the room assignments. Until housing registration closes, the participating hotels will not have record of attendees’ room assignments.

Got an email from my hotel confirming my reservation this morning

We have two rooms at the JW.  One was displaying in the Marriott App this morning.  The other person doesn't have the app and hasn't received an email yet.

Nothing in my inbox yet.

Received both of my room confirmations from the Sheraton today

This will depend on your hotel. You should receive a confirmation.

You can call the hotel now to see if they have you entered your information.

Mike 

But it’s easy enough to see the reservation on my account.

I called the Conrad and they don't have my reservation, though they said to try back Friday.  Does it normally take that long?

Called Crowne plaza. Reservation was confirmed. Huzzah!

Has anyone been able to confirm their reservation at the Hilton Indianapolis? Got in touch today and they still couldn't find our reservation. 

My reservations for both the JW and the Courtyard have populated on my marriott account, so definitely moving forward!

I'm signed up for the Hilton Garden Inn downtown.  I haven't received an email, but I checked the website and it is listed under the activity tab.  Their website told me that they sent me an email, but I'm not seeing it.  I checked the junk folder.