* Optimized the SQL query for abandoned carts. Added more checks in paymentCCAdd hook
* Added check for custom event classes
* Added import of all attached categories to the product in Icml
* Improved the sync event
* Fix error when creating order without items
* Fix tests
* [productId] replace to [offer][externalId]
* properties for items in order and in icml
* fix
* correct order creation
* correct url images
* skip orders with incorrect data
* create order with default payment and delivery, transfer order status from cms
* correct transfer discount
* correct delete items and discount
* history additional functional
* fixed orders upload when customers data is empty and delivery data is empty
* orders update history
* product offers
* fix 5.3 compability
* retailcrm api v4