Automation condition IF issue matches Approvers = currentUser()

[Justin Warwick]

Using Service Desk 3.15.1 on Server 7.12.1, I already have a couple of working automation rules that are triggered WHEN Comment added, and also have conditions of "IF Issue matches", and then I have some approving person in a custom field (that came out-of-the-box in SD): CAB in one case, and Change Managers in the other. I would like to do the same for the field "Approvers", but curiously, it is not present in the list of fields for the Issue matches condition. If I enter Advanced mode for that condition and write a JQL statement to "force" it, I see this error:

(transcription:   Field: 'Approvers' is not searchable, it is only sortable")

So it would seem that Approvers is a little bit special or something. Is there a way to evaluate its contents for a match with the currentUser() function in a JQL statement? Or will I have to hide Approvers and replicate all its functionality on my own in a custom field?

As an aside, though I don't think it matters here, we specifically are looking to process these responses from "Customer" users, not internal, licensed agents. The idea is that management and up type of employees can issue a statement of approval in a reply email, no logon, no webpage visits.

[Tracy Walton]

I'm also looking for this kind of solution, and struggling to find a quick fix. 

Looks like JJ, who reported this issue, is looking for something similar. https://jira.atlassian.com/browse/JSDSERVER-5376 

[Tracy Walton]

I've created this issue with Atlassian that is more specific to providing a way for people to approve requests via email without having to login, please take a look and vote: https://jira.atlassian.com/browse/JSDSERVER-6127

[Alexey Matveev]

Hello,

Try the following line in your JQL:

Approvals = approver("username")

[Justin Warwick]

This is interesting, your suggestion moves me in the right direction I am certain, but something still isn't correct. I found the two approval functions' details here:

https://confluence.atlassian.com/jiracoreserver/advanced-searching-functions-reference-939937722.html#Advancedsearching-functionsreference-approverapprover()

I tried:

approval = approver(currentUser())

approver(currentUser())

Approvals = approver(currentUser())

But none of those were recognized as valid, I could not even confirm and save the definition. This is in the IF condition block of an automation rule,  and I am executing the rule as triggering user, by the way. 

[Alexey Matveev]

You can not use the currentUser() with the approver function.