Restrict Joomla content for CB Plans

Can't get this shortcode to work
{cbsubs:subscribed to="PLAN_ID"}
What plugins are missing?

We have CBSubs Content installed but can't find the CBSubs Bot Joomla plugin which is also required? 

You're using the wrong brackets. Within System > Manage > Plugins edit "cbpaidsubsbot" then under the "Description" tab you'll find the full syntax documentation with several examples for all the content plugin substitutions CBSubs provides.

Thanks Kyle - 
Am I limited to the syntax documented in the plugin? 
or is the entire [cb:if... syntax available?  e.g. !=, !_, [/cb:elseif][/cb:if]

and if not, are the cbsubs fields available to native [cb:if...?
Thanks...

cb:elseif and cb:else are both supported, but they need to be supplied as cbsubs:elseif and cbsubs:else. They again only work for CBSubs conditions and not regular field conditions.

As for the operators available yes, but depends on what you're applying them to. Plan is just like Field like in cb:if so it of course only accepts a static plan id. Status and Since both support operators though. "or" and "and" are also both supported so you can have more than 1 plan status since check on a cbsubs:if.

You can combine cbsubs:if and cb:if to a degree. You should be able to wrap your cbsubs:if conditions with a cb:if and that should work fine. This would result in your fields checked first followed by whatever cbsubs conditions you have.

thanks, Kyle...

I'm constructing a condition "if subscription not 71, not 72 or not 73"   e.g.
[cbsubs:if plan!="71" or plan!="72" or plan!="73"]
and it doesn't appear to work.
Fred

You can't use operators on plan. That's determining what plan to check against for Status and Since conditioning. Changing it to something like the below should work.

[cbsubs:if plan="71" status!="A" or plan="72" status!="A" or plan="73" status!="A"]

This would translate to checking if plans 71, 72, or 73 are not active. The default "status" is "A" so that's why it's allowed to be omitted.