@Akanrat
May i get the screenshot of the rule you have applied and error you got?

Hi @Akanrat,

Yes, coupon API is missing in the docs, I will update that.

Currently, for coupon, there are two routes,

Apply Coupon

To apply the coupon, you need to pass the code key in the request body.

Route::post('cart/coupon', 'CartController@applyCoupon');

Remove Coupon

Route::delete('cart/coupon', 'CartController@removeCoupon');

Just need to hit the route.

For more details, you can check the route file also.