diff --git a/src/apps/clients/notifications.clj b/src/apps/clients/notifications.clj
index 80373614..b53a59fc 100644
--- a/src/apps/clients/notifications.clj
+++ b/src/apps/clients/notifications.clj
@@ -106,11 +106,18 @@
    (send-job-status-update username email-address job-info)))
 
 (defn send-interactive-job-status-update
-  "Sends notification of an interactive job status update to the user."
-  ([username email-address {status :status user-id :user_id :as job-info} {external-id :external_id}]
-   (if-not (jp/completed? status)
-     (let [access-url (str (interapps-url (curl/url (config/interapps-base)) user-id external-id))]
-       (send-job-status-update username email-address (assoc job-info :access_url access-url)))
+  "Sends notification of an interactive job status update to the user, attaching
+   the analysis access URL so the cluster running it is reachable from the
+   notification. job-info is the formatted job, whose :interactive_urls were
+   already built against the correct per-operator base URL."
+  ([username email-address {status :status :as job-info} _job-step-info]
+   ;; Attach :access_url only for a still-running job that actually has an
+   ;; interactive URL. Completed jobs get no URL (the analysis is gone), and a
+   ;; job with no :interactive_urls (no interactive steps) simply has none to
+   ;; attach -- in both cases the plain status update is sent.
+   (if-let [access-url (and (not (jp/completed? status))
+                            (first (:interactive_urls job-info)))]
+     (send-job-status-update username email-address (assoc job-info :access_url access-url))
      (send-job-status-update username email-address job-info)))
   ([{username :shortUsername email-address :email} job-info job-step-info]
    (send-interactive-job-status-update username email-address job-info job-step-info)))
diff --git a/src/apps/persistence/jobs.clj b/src/apps/persistence/jobs.clj
index a52e1c36..dbea8ff7 100644
--- a/src/apps/persistence/jobs.clj
+++ b/src/apps/persistence/jobs.clj
@@ -356,7 +356,8 @@
                   :j.job_type
                   :j.parent_id
                   :j.is_batch
-                  :j.notify)))
+                  :j.notify
+                  :j.operator_base_url)))
 
 (defn- hsql-job-base-query
   "The HoneySQL version of the base query used for retrieving job information from the database."
@@ -379,7 +380,8 @@
                 :j.job_type
                 :j.parent_id
                 :j.is_batch
-                :j.notify)
+                :j.notify
+                :j.operator_base_url)
       (h/from [:job_listings :j])))
 
 (defn- job-step-base-query
@@ -474,7 +476,8 @@
                  :j.job_type
                  :j.parent_id
                  :j.is_batch
-                 :j.notify)
+                 :j.notify
+                 :j.operator_base_url)
       (sql/where (exists (sql/subselect :job_steps (sql/where {:job_id :j.id :external_id [:in external-ids]}))))
       (sql/select)))
 
diff --git a/src/apps/service/apps/job_listings.clj b/src/apps/service/apps/job_listings.clj
index 681a1ebc..dd94923f 100644
--- a/src/apps/service/apps/job_listings.clj
+++ b/src/apps/service/apps/job_listings.clj
@@ -66,9 +66,14 @@
     :batch_status    (when (:is_batch job) (format-batch-status id))}))
 
 (defn- interactive-urls
-  [{user-id :user_id :as job} rep-steps]
-  (let [interactive? (fn [step] (= (:job_type step) jp/interactive-job-type))
-        get-url      (fn [step] (str (interapps-url (url (config/interapps-base)) user-id (:external_id step))))]
+  [{user-id :user_id operator-base-url :operator_base_url :as job} rep-steps]
+  ;; Use the base URL of the operator the job was launched on so the URL
+  ;; points at the cluster actually running the analysis. Jobs with no
+  ;; operator_id (legacy / pre-operator launches) fall back to the static
+  ;; interactive-apps base URL.
+  (let [base         (url (or operator-base-url (config/interapps-base)))
+        interactive? (fn [step] (= (:job_type step) jp/interactive-job-type))
+        get-url      (fn [step] (str (interapps-url base user-id (:external_id step))))]
     (when-not (:is_batch job)
       (seq (map get-url (filter interactive? (rep-steps (:id job))))))))