Using the Action Apply api but can't get VALID object references

[cedarchase]

I’m trying to call the Action Apply endpoint from a webhook (or curl) and getting INVALID for some of my parameters. For example, when I pass the primary key of an object reference parameter just as a string:

I pass in: “createdBy”: “123456”

I get:

"createdBy": {
        "result": "VALID",
          "evaluatedConstraints": [
            {
              "type": "objectQueryResult"
            }
          ],
        "required": true
 }

Here is the action in OMA.

So that works fine. Above is getting the Employee object and I assume searching by that primary key I provided. But for some other objects, I get invalid and I’m not sure why. Example:

I pass: “issueType”: “770d9c5e-f346-47cb-bb8b-4e07668361f2”

I get back:

"issueType": {
        "result": "INVALID",
        "evaluatedConstraints": [
          {
            "type": "objectQueryResult"
          }
        ],
        "required": true
      }

I’m not sure how to solve this. I tried using the Function syntax, like:

 "issueType": {
            "typeId": "ikqkt5nk.eolas-issue-type",
            "primaryKey": {
                "issueTypeId": "770d9c5e-f346-47cb-bb8b-4e07668361f2"
            }
        }

But that didn’t work either.

My guess, is that since the constraints include a search around, Foundry can’t search by the primary key alone. Maybe this is a bug? Or there is some other syntax I can try?