I'm partner in a logistics/fulfillment company out of Los Angeles doing just this, primarily for e-commerce and Amazon. We receive pallets to our warehouse, repackage if necessary, store, then ship orders received via API's. My partners have been regularly in the top ten of Amazon FBA volume over the last six years. We have spent the last six months optimizing our systems. We prefer smaller sized items (no bikes for example) and ship an array including CBD products.

One of our clients right now is a cannabis accessories brand from Holland, so we are receiving pallets already from UK. My email is on my profile page and would love to help out.