Editing orders older than 180 days
According to Shopify's Help Center, you can only edit an order in Shopify if it was placed less than 180 days ago. You would also need to be the store owner or have the right permission to edit any orders.
Edit Order allows you to edit orders without any timeframe restrictions, no matter when your order was placed. Also, you don’t even need to set up any additional permissions, since the permissions you use to access Edit Order are already enough.
Any questions? Feel free to reach out to our support team at firstname.lastname@example.org!