Attribute rule returned value but no field was specified - help

[KallieH]

Hello, this is my first post so apologies for possible incorrect formatting or post location.

Very new to arcade and coding in general. I am trying to implement an attribute rule into my inspection table that triggers when an inspection is updated or created. Once this attribute rule is triggered it should populate a field in my permits layer stating the job has been completed. But  only if there is a final inspection type detected within the same permit ID (link field/ permit number). 

Attribute rule triggers are insert & update.  Exclude from application evaluation is checked. My errors and code are below. Thank you!

// Get the harvest permit records
var relatedPermits = FeatureSetByName($datastore, "HarvestPermits_ExportFeatures", ["JOB_COMPLETED", "LINK_FIELD", "GLOBALID"], false);

// Get permit number from the record in the table
var permitNumber = $feature.PERMITNUMBER;

// Ensure permit IDs match
var relatedPermit = First(Filter(relatedPermits, "LINK_FIELD = @permitNumber"));

// Check if the current inspection is "final" and a related permit exists
if (Lower($feature.FIELD_INSPECTIONS_TYPE) == 'f' && relatedPermit != null) {
    // Get the globalID of the related permit
    var permitGlobalID = relatedPermit.GLOBALID;

    // Update the harvest permits
    return {
        "edit": [{
            "className": "HarvestPermits_ExportFeatures",
            "updates": {
               "globalID": permitGlobalID,
               "attributes": {
                "JOB_COMPLETED": "Yes"
               }
            }

        }]
    };
} else {
    Console("Conditions not met for update. Inspection Type: " + $feature.FIELD_INSPECTIONS_TYPE);
}

// If no update was made, return null
return null;

[MikeMillerGIS · Accepted solution]

Change return null to just return

Returning null means you are trying to set the assigned field to null.