I do wonder the same thing.

When circumstancing on a single property, the same property has to be used for all rules. It is possible to circumstance on multiple properties using a Circumstance Template and Definition, but then we would have more than 3 rules.

This doesn't seem to be in the CSSA Student Guide.  Where can I find this clarification, in the help somewhere?

Hmm you're right it errors with this, when I played with it:

ah thanks guys.

I have the same question,why cant we have one non circumstanced  and two circumstanced single property rules for accountID and Origin Province respectively.

Does it mean that we can create only one single property circumstanced rule ?

Yeah We Can, Can you guys know what is the limit to do circumstancing for a single rule ?

The limitation when circumstancing on a single property is that you have to use the same property for all circumstanced rules. For example, you have a base rule (which is not circumstanced) and then you create a new circumstanced version of the rule with the accountID as the circumstanced property. If you want to create additional circumstanced versions of the rule they must also be circumstanced on the accountID. It is not possible to select a different property.

It is possible to use different properties using a Circumstance Template and Definition.