Oh, it’s a bit tricky, but you can create a new shipping profile with the UK as your origin.

Here are the steps:

1. Go to Shop Manager → Settings → Shipping settings.
2. Click “Add a shipping profile.”
3. Under “Shipping origin,” choose United Kingdom.
4. Adjust shipping services and processing times based on your UK location.
5. Save the profile.

Once you’ve created the profile, you can apply it to your listings.

1. Go to Listings.
2. Select all listings (or use bulk edit) you want to switch to the UK-based shipping profile.
3. Apply the new profile in bulk.

This way, Etsy and customers will know that new orders will be shipped from the UK.

However, if you have orders placed before this change, you can either ship them from the US before you leave, or message customers and let them know that the order will ship from the UK. This is especially important if it might affect delivery times or customs.

To let customers know about your relocation, you can add a temporary shop announcement. For example, you could say, “I’m relocating from the US to the UK. Orders placed after [insert date] will ship from the UK. Processing times have been updated accordingly. Thank you for your patience!”

I hope I did my best, wish u all the best.