combining calendars for multiple OR properties?

I'm considering putting together two extra combinations of my three VRBO properties in order to meet VRBO's reqt to have 5 properties to use their API.

I have properties A, B, C, and I'd consider offering B&C as a 'lockoff' since they are side by side with interior doors, and I could offer A&B&C for a large party needing 3 spaces.

Just don't know if OR can handle the calendar sync behind the scenes to only allow booking if either B&C or A&B&C are unbooked.

Yes! That's the Mutual Block feature:

https://www.ownerrez.com/support/articles/combined-properties-blockoff-lockoff

Thanks - this is encouraging!

Does this feature allow me to manage my A,B,C property rates, fees, etc and then allow them to be added together to form the A+B rate?

And is there possibly a feature to incr/decr the total rate by a percentage, for instance maybe I'd be okay giving a 10% discount for anyone booking A&B together.

It's not quite that smart. :-) From the perspective of OwnerRez and your listing sites, A, B, and C are each independent properties, with their own set of rates and rules. So you can easily configure the rates of C to be a bit less than what A and B's rates combined would have been. Mutual Blocking just blocks off the calendar dates correctly, that's all.

It's hard enough to manage the nightly rates for my three properties, they change many times throughout each season. There's no way possible for me to keep accurate rates on combined properties..

Is there any way that OR could incorporate mutual blocking spot rates?

For instance when a mutual blocking property is enabled, it obviously understands the related properties. Could it create a table of spot rates for that combined property? If that can be done then just some additional code to update the mutual spot rates whenever the underlying spot rates change, along with a setting for push rates to update any mutual spot rates that depend upon spot rates.

That's an interesting idea, something we'll put in the pot to start thinking about. Might work if it was just spot rates, but for sure not with seasonal.

You could hack this together yourself since you're using the Excel import/export for spot rates, right? Once you do the sub properties, then do another one with a formula to add the two together. Fill down, copy/paste values the resulting sums into the template spreadsheet and that should give you a file you can import on the combination.

Well, y'all did such a nice job with the Rate Calendar that I only use the excel import one time per season, and then afterwards I can just use the Rate Calendar to make whatever changes I'd like. So yes I could use formulas, but that's way to much work (and error potential) to do for every little tweak as dates get close.