diff --git a/fusion_plating/fusion_plating/models/fp_step_template.py b/fusion_plating/fusion_plating/models/fp_step_template.py
index 883f2074..43fd1f05 100644
--- a/fusion_plating/fusion_plating/models/fp_step_template.py
+++ b/fusion_plating/fusion_plating/models/fp_step_template.py
@@ -79,22 +79,10 @@ class FpStepTemplate(models.Model):
              'earlier-sequence steps are still in progress (e.g. '
              'paperwork that runs alongside production).',
     )
-    # Sub 14 — workflow milestone trigger (optional)
-    # The fp.job.workflow.state model lives in fusion_plating_jobs, so
-    # this Many2one resolves at runtime only when that module is loaded.
-    # When the library template is dropped into a recipe, the value is
-    # snapshot-copied to the new process_node via _SNAPSHOT_FIELDS in
-    # simple_recipe_controller.py.
-    triggers_workflow_state_id = fields.Many2one(
-        'fp.job.workflow.state',
-        string='Triggers Workflow State',
-        ondelete='set null',
-        help='Sub 14. When a recipe step generated from this template '
-             'finishes (or is skipped/cancelled), the parent job '
-             'advances to this workflow state. Leave blank to fall '
-             'back to default-kind matching defined on the workflow '
-             'state catalog.',
-    )
+    # Sub 14 — triggers_workflow_state_id is declared via _inherit in
+    # fusion_plating_jobs/models/fp_job.py. It can't live here because
+    # the target model (fp.job.workflow.state) is defined in jobs, and
+    # core can't depend on jobs (cyclic dependency).
     requires_rack_assignment = fields.Boolean(string='Requires Rack Assignment',
         help='Triggers Rack Parts sub-dialog at runtime (Sub 12b).')
     requires_transition_form = fields.Boolean(string='Requires Transition Form',
diff --git a/fusion_plating/fusion_plating_jobs/__manifest__.py b/fusion_plating/fusion_plating_jobs/__manifest__.py
index 1b3e9a65..54c6d89b 100644
--- a/fusion_plating/fusion_plating_jobs/__manifest__.py
+++ b/fusion_plating/fusion_plating_jobs/__manifest__.py
@@ -3,7 +3,7 @@
 # License OPL-1 (Odoo Proprietary License v1.0)
 {
     'name': 'Fusion Plating — Native Jobs',
-    'version': '19.0.8.18.3',
+    'version': '19.0.8.18.4',
     'category': 'Manufacturing/Plating',
     'summary': 'Native plating job model — replaces mrp.production / mrp.workorder bridge.',
     'author': 'Nexa Systems Inc.',
diff --git a/fusion_plating/fusion_plating_jobs/models/fp_job.py b/fusion_plating/fusion_plating_jobs/models/fp_job.py
index 761e6d2a..fccfde84 100644
--- a/fusion_plating/fusion_plating_jobs/models/fp_job.py
+++ b/fusion_plating/fusion_plating_jobs/models/fp_job.py
@@ -1413,3 +1413,27 @@ class FusionPlatingProcessNodeWorkflow(models.Model):
              'workflow state. Leave blank to fall back to default-kind '
              'matching defined on the workflow state catalog.',
     )
+
+
+class FpStepTemplateWorkflow(models.Model):
+    """Sub 14 — workflow milestone trigger on the library step template.
+    Declared here (jobs module) instead of fusion_plating core because
+    the target model (fp.job.workflow.state) lives in this module —
+    core can't reference it without a cyclic dependency.
+
+    When the template lands in a recipe via simple_recipe_controller
+    drag-drop, the value is snapshot-copied to the new process_node
+    via _SNAPSHOT_FIELDS.
+    """
+    _inherit = 'fp.step.template'
+
+    triggers_workflow_state_id = fields.Many2one(
+        'fp.job.workflow.state',
+        string='Triggers Workflow State',
+        ondelete='set null',
+        help='Sub 14. When a recipe step generated from this template '
+             'finishes (or is skipped/cancelled), the parent job '
+             'advances to this workflow state on its status bar. Leave '
+             'blank to fall back to default-kind matching defined on '
+             'the workflow state catalog.',
+    )
diff --git a/fusion_plating/fusion_plating_jobs/models/fp_job_workflow_state.py b/fusion_plating/fusion_plating_jobs/models/fp_job_workflow_state.py
index 8e2cb053..dffd6bc2 100644
--- a/fusion_plating/fusion_plating_jobs/models/fp_job_workflow_state.py
+++ b/fusion_plating/fusion_plating_jobs/models/fp_job_workflow_state.py
@@ -28,6 +28,7 @@ from odoo import _, api, fields, models
 class FpJobWorkflowState(models.Model):
     _name = 'fp.job.workflow.state'
     _description = 'Fusion Plating — Job Workflow State (status bar milestone)'
+    _inherit = ['mail.thread', 'mail.activity.mixin']
     _order = 'sequence, id'
     _rec_name = 'name'
 
@@ -35,12 +36,14 @@ class FpJobWorkflowState(models.Model):
         string='State Name',
         required=True,
         translate=True,
+        tracking=True,
         help='Operator-facing label shown in the job status bar '
              '(e.g. "Received", "Inspected", "Shipped").',
     )
     code = fields.Char(
         string='Code',
         required=True,
+        tracking=True,
         help='Stable identifier — used by code/migrations to reference '
              'this state without depending on the (translatable) name. '
              'Lowercase snake_case (e.g. "received", "inspected").',
@@ -49,6 +52,7 @@ class FpJobWorkflowState(models.Model):
         string='Sequence',
         default=10,
         required=True,
+        tracking=True,
         help='Position of this state on the bar (left to right). '
              '10-spacing convention so authors can insert new states '
              'between existing ones without renumbering.',
diff --git a/fusion_plating/fusion_plating_jobs/views/fp_workflow_state_views.xml b/fusion_plating/fusion_plating_jobs/views/fp_workflow_state_views.xml
index e9b21f1b..2e835572 100644
--- a/fusion_plating/fusion_plating_jobs/views/fp_workflow_state_views.xml
+++ b/fusion_plating/fusion_plating_jobs/views/fp_workflow_state_views.xml
@@ -105,6 +105,9 @@
                     <field name="description" nolabel="1"
                            placeholder="What this milestone represents and when it should fire..."/>
                 </sheet>
+                <!-- Chatter — adds activity log + message thread + followers
+                     so admins can audit who changed which trigger and when. -->
+                <chatter/>
             </form>
         </field>
     </record>