diff --git a/temba/msgs/migrations/0265_broadcast_template_variables.py b/temba/msgs/migrations/0265_broadcast_template_variables.py
new file mode 100644
index 00000000000..2e5997d44d7
--- /dev/null
+++ b/temba/msgs/migrations/0265_broadcast_template_variables.py
@@ -0,0 +1,19 @@
+# Generated by Django 5.0.4 on 2024-07-01 19:24
+
+import django.contrib.postgres.fields
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("msgs", "0264_broadcast_exclusions"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="broadcast",
+            name="template_variables",
+            field=django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), null=True, size=None),
+        ),
+    ]
diff --git a/temba/msgs/models.py b/temba/msgs/models.py
index 116f9520495..619de62732f 100644
--- a/temba/msgs/models.py
+++ b/temba/msgs/models.py
@@ -198,11 +198,12 @@ class Broadcast(models.Model):
     query = models.TextField(null=True)
     exclusions = models.JSONField(default=dict, null=True)
 
-    # message content in different languages, e.g. {"eng": {"text": "Hello", "attachments": [...]}, "spa": ...}
-    translations = models.JSONField()
+    # message content
+    translations = models.JSONField()  # text, attachments and quick replies by language
     base_language = models.CharField(max_length=3)  # ISO-639-3
     optin = models.ForeignKey("msgs.OptIn", null=True, on_delete=models.PROTECT)
     template = models.ForeignKey("templates.Template", null=True, on_delete=models.PROTECT)
+    template_variables = ArrayField(models.TextField(), null=True)
 
     status = models.CharField(max_length=1, choices=STATUS_CHOICES, default=STATUS_QUEUED)
     created_by = models.ForeignKey(User, null=True, on_delete=models.PROTECT, related_name="broadcast_creations")
@@ -291,7 +292,7 @@ def get_translation(self, contact=None) -> dict:
 
         def trans(d):
             # ensure that we have all fields
-            return {"text": "", "attachments": [], "quick_replies": [], "template_variables": []} | d
+            return {"text": "", "attachments": [], "quick_replies": []} | d
 
         if contact and contact.language and contact.language in self.org.flow_languages:  # try contact language
             if contact.language in self.translations: