diff --git a/runbot_merge/controllers/misc.py b/runbot_merge/controllers/misc.py
index bbd27c1c0..8f18973c5 100644
--- a/runbot_merge/controllers/misc.py
+++ b/runbot_merge/controllers/misc.py
@@ -6,9 +6,9 @@ class MergebotController(Controller):
 
     @from_role('tx', signed=True)
     @route('/i18n/merge_commit', type='json', auth='public')
-    def merge_commit(self, commit_hash, repository, branch, project="RD"):
+    def merge_commit(self, commit_hash, repository, branch, project="RD", callback_url=None):
         """Merge a specific commit hash in a repository
-        
+
         The commit_hash must be known by mergebot (in the git network)
         Used for translation synchronisation from transifex
         """
@@ -25,9 +25,12 @@ def merge_commit(self, commit_hash, repository, branch, project="RD"):
         if not target:
             return {"error": f"Target branch {project}:{branch} not found"}
 
-        patch = request.env["runbot_merge.patch"].sudo().create({
+        vals = {
             "repository": repository_id.id,
             "target": target.id,
-            "commit": commit_hash
-        })
+            "commit": commit_hash,
+        }
+        if callback_url:
+            vals["callback_url"] = callback_url
+        patch = request.env["runbot_merge.patch"].sudo().create(vals)
         return {"patch": patch.id}
diff --git a/runbot_merge/models/patcher.py b/runbot_merge/models/patcher.py
index 699a4cf41..7feeb97b7 100644
--- a/runbot_merge/models/patcher.py
+++ b/runbot_merge/models/patcher.py
@@ -21,6 +21,7 @@
 from typing import Union
 
 from markupsafe import Markup
+import requests
 
 from odoo import models, fields, api
 from odoo.exceptions import ValidationError
@@ -144,6 +145,10 @@ class Patch(models.Model):
     repository = fields.Many2one('runbot_merge.repository', required=True, tracking=True)
     target = fields.Many2one('runbot_merge.branch', required=True, tracking=True)
     commit = fields.Char(size=40, string="commit to cherry-pick, must be in-network", tracking=True)
+    callback_url = fields.Char(
+        "Callback URL",
+        help="If set, a POST request is made to this URL after the patch was either applied or failed.",
+    )
 
     patch = fields.Text(string="unified diff to apply", tracking=True)
     format = fields.Selection([
@@ -335,6 +340,7 @@ def _apply_patches(self, target: Branch) -> bool:
                     # TODO: do better
                     body=e.args[0] if isinstance(e.args[0], Markup) else Markup("<pre>{}</pre>").format(e),
                 )
+                patch._fire_callback(success=False)
                 continue
 
             # push patch by patch, avoids sync issues and in most cases we have 0~1 patches
@@ -352,11 +358,38 @@ def _apply_patches(self, target: Branch) -> bool:
                     "Unable to push result of %s (%s)\nout:\n%s\nerr:\n%s",
                     patch, c, res.stdout, res.stderr,
                 )
+                patch._fire_callback(success=False)
             else:
                 info['target_head'] = c
+                patch._fire_callback(success=True)
 
         return True
 
+    def _fire_callback(self, success: bool) -> None:
+        """POST to callback_url (if set) to notify the caller that the patch was applied or failed."""
+        self.ensure_one()
+        # hide from pytest as it's not on the PYTHONPATH
+        from odoo.addons.saas_worker.auth_util import SaasAuth
+        if not self.callback_url:
+            return
+        data = {
+            'jsonrpc': '2.0',
+            'id': None,
+            'method': 'call',
+            'params': {
+                'repository': self.repository.name,
+                'branch': self.target.name,
+                'patch': self.id,
+                'success': success,
+            },
+        }
+        try:
+            res = requests.post(self.callback_url, json=data, auth=SaasAuth(), timeout=30)
+            res.raise_for_status()
+            _logger.info("Patch callback to %s succeeded.", self.callback_url)
+        except requests.RequestException:
+            _logger.error("Patch callback to %s failed.", self.callback_url)
+
     def _apply_commit(self, r: git.Repo, parent: str) -> str:
         r = r.check(True).stdout().with_config(encoding="utf-8")
         target = r.show('--no-patch', '--pretty=%an%n%ae%n%ai%n%cn%n%ce%n%ci%n%B', self.commit)