how to make a JQL filter based on an asset

[NEGAR JALALIAN]

hi 

I'm new to asset management in cloud 

I need to make JQL filter based on an asset 

forexample : 

project = "Secondline Customer Service" AND problem IN aqlFunction('"objectId" Is "CS-99"')

in this filter : problem is custom field for asset 

CS-99 is an object 

might sound stupid but tried many things but couldn't figure out :( 

[NEGAR JALALIAN · Accepted solution]

I could have it worked in this way : 

project = "Secondline Customer Service" AND Problem IN aqlFunction("key=CS-99")

[Dick]

Not my forte, but isn't the IN supposed to be followed by an array (brackets) with objects?

project = "Secondline Customer Service" AND problem IN ("CS-99") 

[Dick]

Syntax is elaborated with examples at: 
Using Assets Query Language (AQL) syntax | Jira Service Management Cloud | Atlassian Support