Before you try to URL-encode your query and run it through the API, test it out, using the Web Reports QNA page.
https://your-webreports-server:8083/webreports?page=QNA
There is a property with that name, if you’ve activated the right Analysis from “BES Inventory and License”
Q: names of bes properties whose (name of it as lowercase contains "identifying number")
A: Identifying Number - Windows
But, “identifying number” is not a property of a “bes property”. You can see what things are properties of a BES Property using a special class of relevance called “introspectors”, or see what you can query by browsing the Inspectors at https://developer.bigfix.com
Using the Introspector, I can see that a ‘bes property’ type has a lot of properties. I’m only going to show a few of them here:
q: properties of type "bes property"
A: name of <bes property>: string
A: source analysis of <bes property>: bes fixlet
A: results of <bes property>: bes property result
A: result from <bes computer> of <bes property>: bes property result
I think it’s likely you want the results of the property, right? There is a ‘results’ property from a bes property, which returns type “bes property result”, so let’s get a description for the ‘bes property result’ type:
q: properties of type "bes property result"
A: computer of <bes property result>: bes computer
A: property of <bes property result>: bes property
A: error message of <bes property result>: string
A: plural flag of <bes property result>: boolean
A: error flag of <bes property result>: boolean
A: value count of <bes property result>: integer
A: values of <bes property result>: string
From a ‘bes property result’, we can get several properties, the most interesting probably being the ‘value’ of the result, and the ‘bes computer’ that reported that value. I could do the same introspection to see what properties a ‘bes computer’ has, but I already know the ones I want are probably the BES Computer ID and the Computer Name.
So to summarize, what I think we want, is for each result of the property, retrieve the name of the computer and the value that computer reported:
q: (name of computer of it | "Not Reported", values of it) of results of bes properties whose (name of it = "Identifying Number - Windows")
A: BES-ROOT, 4269-0282-1426-4548-5290-6320-54
A: ENDPOINT-1, 1602-7358-4526-4175-3673-3448-08
A: BFC, 9103-0388-0424-7213-8687-7743-57
A: WIN2016-1581-58, 1581-5853-3390-5672-0341-7262-92
A: WEBUI, 7574-3630-5177-9989-4144-4766-06
A: SCCM, 0897-9378-5322-7139-8143-0073-47
A: OSD, 4330-9052-6529-5889-2640-3271-55
A: BFI, 3976-8002-5156-3735-7557-7898-31
A: DC, 0122-1939-8056-5006-8806-5266-60
So, once you’ve tested a working query, you (or your script tool) can URL-encode that and send it through the API.