Automated Paypal Shipping Info

New Member
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Have searched on this topic quite a bit and can't understand why this isn't a bigger issue with sellers.  Essentially having funds released by Paypal requires manual entry of shipping information.  PIA and a complete waste of time.  There are a few apps out there that automate the entry of shipping info, but none currently blessed by Paypal or Shopify (as far I can tell).  Am i missing something obvious without splitting my shipping solution (adding Paypal Shipping to my current platform) or taking a chance on apps that have limited user info?