This extension integrates Royal Mail Shipping API V2 with Magento Shipping process and will be compatible with Click & drop once the DMO is discontinued. Seller can manage complex shipping rates, create shipments and generate labels. This also provides additional feature to ship orders in mass.
This extension allows you to ship orders with 13ten. You can generate shipping labels from magento interface and automatically upload shipments to 13ten. Add shipping rates based on weight and other conditions.