Advanced Shipping Rate Manager

This is the only real solution for having full control over your shipping. Shopify carrier calculated rates are extremely limited and for companies with a variety of products of all shapes and sizes it doesn't even come close to getting the job done. We required UPS for some packages, and USPS for others. You can call Advanced Shipping manager at any time and they will walk you through to fix any issues. Depending on how complicated your shipping is, it can be tricky to get everything right, the system is very deep and it needs perfect data at every step to get it right. But it's worth it to have actual control of shipping!