Haji Tehari

That’s expected. JetSmartFilters doesn’t show a “JetReviews” data source in the filter editor (in many setups/versions).
The reliable way is: sync JetReviews rating into post meta, then filter/sort by that meta like a normal JetEngine field.

Here’s the working method (official Jet way):

1) Turn on JetReviews → Post Meta Sync (this is the key)

Go to:

WP Admin → JetReviews → Settings

Enable:

• ✅ Post metadata (toggle)

Then set:

• Average rating metadata key → keep default or set one (default is usually: _jet_reviews_average_rating)

• Choose the “Post meta” bound option (whatever wording you see there)

Then click:

• ✅ Sync rating data (button)

This writes each post’s average rating into post meta, so filters can use it.

2) Create the Rating filter in JetSmartFilters (using Custom Fields / Meta)

JetSmartFilters → Add New

• Filter type: Range (or Rating filter if you prefer stars)

• Data Source: Custom Fields

• Custom field key: _jet_reviews_average_rating (or the key you set above)

If you used a different meta key in JetReviews settings, use that exact one.