diff --git a/.last-branch b/.last-branch
index 268e004..2133819 100644
--- a/.last-branch
+++ b/.last-branch
@@ -1 +1 @@
-backupchecks-v20260106-21-changelog-0.1.17
+v20260106-22-ticket-link-multiple-jobs
diff --git a/containers/backupchecks/src/backend/app/main/routes_api.py b/containers/backupchecks/src/backend/app/main/routes_api.py
index 393d3ca..87f2a65 100644
--- a/containers/backupchecks/src/backend/app/main/routes_api.py
+++ b/containers/backupchecks/src/backend/app/main/routes_api.py
@@ -204,43 +204,77 @@ def api_tickets():
     if not re.match(r"^T\d{8}\.\d{4}$", ticket_code):
         return jsonify({"status": "error", "message": "Invalid ticket_code format. Expected TYYYYMMDD.####."}), 400
 
-    # Ensure uniqueness
-    if Ticket.query.filter_by(ticket_code=ticket_code).first():
-        return jsonify({"status": "error", "message": "ticket_code already exists."}), 409
+    existing = Ticket.query.filter_by(ticket_code=ticket_code).first()
 
-    ticket = Ticket(
-        ticket_code=ticket_code,
-        title=None,
-        description=description,
-        active_from_date=_to_amsterdam_date(run.run_at) or _to_amsterdam_date(now) or now.date(),
-        start_date=now,
-        resolved_at=None,
-    )
+    # If the ticket already exists, link it to this job/run (a single ticket number can apply to multiple jobs).
+    if existing:
+        ticket = existing
+        try:
+            # Ensure there is at least one job scope for this ticket/job combination.
+            if job and job.id:
+                scope = TicketScope.query.filter_by(
+                    ticket_id=ticket.id,
+                    scope_type="job",
+                    job_id=job.id,
+                ).first()
+                if not scope:
+                    scope = TicketScope(
+                        ticket_id=ticket.id,
+                        scope_type="job",
+                        customer_id=job.customer_id,
+                        backup_software=job.backup_software,
+                        backup_type=job.backup_type,
+                        job_id=job.id,
+                        job_name_match=job.job_name,
+                        job_name_match_mode="exact",
+                    )
+                    db.session.add(scope)
 
-    try:
-        db.session.add(ticket)
-        db.session.flush()
+            # Link the ticket to this specific run (idempotent due to unique constraint).
+            existing_link = TicketJobRun.query.filter_by(ticket_id=ticket.id, job_run_id=run.id).first()
+            if not existing_link:
+                link = TicketJobRun(ticket_id=ticket.id, job_run_id=run.id, link_source="manual")
+                db.session.add(link)
 
-        # Minimal scope from job
-        scope = TicketScope(
-            ticket_id=ticket.id,
-            scope_type="job",
-            customer_id=job.customer_id if job else None,
-            backup_software=job.backup_software if job else None,
-            backup_type=job.backup_type if job else None,
-            job_id=job.id if job else None,
-            job_name_match=job.job_name if job else None,
-            job_name_match_mode="exact",
+            db.session.commit()
+        except Exception as exc:
+            db.session.rollback()
+            return jsonify({"status": "error", "message": str(exc) or "Failed to link ticket."}), 500
+
+    else:
+        ticket = Ticket(
+            ticket_code=ticket_code,
+            title=None,
+            description=description,
+            active_from_date=_to_amsterdam_date(run.run_at) or _to_amsterdam_date(now) or now.date(),
+            start_date=now,
+            resolved_at=None,
         )
-        db.session.add(scope)
 
-        link = TicketJobRun(ticket_id=ticket.id, job_run_id=run.id, link_source="manual")
-        db.session.add(link)
+        try:
+            db.session.add(ticket)
+            db.session.flush()
 
-        db.session.commit()
-    except Exception as exc:
-        db.session.rollback()
-        return jsonify({"status": "error", "message": str(exc) or "Failed to create ticket."}), 500
+            # Minimal scope from job
+            scope = TicketScope(
+                ticket_id=ticket.id,
+                scope_type="job",
+                customer_id=job.customer_id if job else None,
+                backup_software=job.backup_software if job else None,
+                backup_type=job.backup_type if job else None,
+                job_id=job.id if job else None,
+                job_name_match=job.job_name if job else None,
+                job_name_match_mode="exact",
+            )
+            db.session.add(scope)
+
+            link = TicketJobRun(ticket_id=ticket.id, job_run_id=run.id, link_source="manual")
+            db.session.add(link)
+
+            db.session.commit()
+        except Exception as exc:
+            db.session.rollback()
+            return jsonify({"status": "error", "message": str(exc) or "Failed to create ticket."}), 500
 
     return jsonify(
         {
@@ -251,8 +285,8 @@ def api_tickets():
                 "description": ticket.description or "",
                 "start_date": _format_datetime(ticket.start_date),
                 "active_from_date": str(ticket.active_from_date) if getattr(ticket, "active_from_date", None) else "",
-                "resolved_at": "",
-                "active": True,
+                "resolved_at": _format_datetime(ticket.resolved_at) if getattr(ticket, "resolved_at", None) else "",
+                "active": getattr(ticket, "resolved_at", None) is None,
             },
         }
     )
diff --git a/docs/changelog.md b/docs/changelog.md
index bc22d8e..aa7fa27 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,3 +1,8 @@
+## v20260106-22-ticket-link-multiple-jobs
+
+- Fixed ticket linking logic to allow the same existing ticket number to be associated with multiple jobs and job runs.
+- Prevented duplicate ticket creation errors when reusing an existing ticket_code.
+- Ensured tickets are reused and linked instead of rejected when already present in the system.
 
 
 ================================================================================================================================================