We've been selling locally held stock for a while now.
Just prior to a site redesign (imminent) we decided to use print on demand drop ship to have our designs use din other ways.
One of the Apps for drop shop (Printful) does it's own shipping (hooray), but the other two (Printify and Art of Where) want us to do our own.
For the love of God I cannot get the shipping to work properly to combine orders with dropship and local stock. Single orders are fine. Beyond that, mayhem.
Any advice or offers of help (paid or otherwise) appreciated to get this sorted and stop us from having an embarrassing message on our site www.medloops.com