Delete Multiple Promotions
Deletes multiple promotions. Currently, batches are limited to 50 promotions.
**Notes**
* "id:in" query param is required to delete promotions. If this parameter is not provided, or provided with the wrong data format, a 422 error code is returned.
* You cannot delete promotions that still have coupon codes attached.
* The default rate limit for this endpoint is 40 concurrent requests.