Julie here from Shopify Support.
The return labels should include the new address you have set in Settings > Shipping > Shipping Origin. If this isn’t the case, then the issue may be due to the products aren’t being stocked at your previous location. If you head over to Settings > Locations, are you seeing the previous address there?
If so, you can either deactivate or delete the old location. Just note that deleting it will be permanent, so if there’s a possibility you’ll be using that address again, I’d recommend simply deactivating it. We have a help doc on how to deactivate and delete locations you can check out here. Once you deactivate or delete a location, you will be prompted with an option to transfer the stock over to a different location (in this case, you’d want to transfer it to the Shipping Origin location).
If the old address isn’t listed under Locations, I can definitely take a deeper look here. If this is the case, please let me know and I can dig further by sending you an email at the address attached to your Shopify Community account. That way, I can authenticate your account and proceed with the next steps.
Feel free to also reach back out and let me know if the address was still listed in Settings > Locations and if deactivating/deleting that location did the trick!
That really depends on the store's fulfillment process. Some merchants dropship, in which case, you're totally right - adding your shipping origin address in your shipping settings wouldn't make any difference as multiple suppliers would be shipping the products on your behalf. On top of that, for dropshippers, the shipping origin makes no difference because shipping labels won't need to be purchased or printed.
However, many merchants ship products themselves, from a single location. In this case, having a shipping origin allows merchants to offer their customers calculated shipping rates and also gives them the ability to purchase and print shipping labels right at home. If you have multiple locations and are needing to offer customers calculated shipping rates, along with the ability to print shipping labels, then I recommend checking out our help doc on how to change your shipping origin. However, the instructions outlined here only apply if you are using multiple locations (retail stores, warehouses, popups, etc.).
Whether or not you need a shipping origin address really boils down to your business model and how you fulfill your orders. Are you currently shipping orders yourself, or are you dropshipping from multiple suppliers?
Which carrier are you using? If you're purchasing and printing shipping labels through Shopify Shipping, then the tracking number associated with that shipping label should be providing you with accurate shipping updates.
If not, then it sounds like this could be an issue with either the carrier or the tracking service you're using. I'd first suggest using a tracking service like 17Track or Parcels app, both of which will allow you to enter tracking numbers and track shipments from any carrier. If the results still seem to be inaccurate, then contacting the shipping carrier directly would be the best course of action.
Let me know how that goes!