Billing address is sporadically overriding the shipping address at checkout, causing delivery errors. The behavior is reported without a clear trigger and persists even when customers do not select “billing same as shipping.”
Observed details:
Support guidance suggests that separate billing and shipping addresses should work. If the checkout is customized via an app, users are advised to contact the app developer; if using the default Shopify checkout, contact Shopify Support.
Another participant confirms experiencing the same issue and reports difficulty getting resolution, with support teams blaming each other. Status: unresolved; root cause and fix remain unclear, and further investigation by Shopify or the app developer is needed.
We are having an issue with the Billing Address automatically overriding the Shipping Address at checkout.
It is happening sporadically
There is no correlation with payment method
It is only updating the Shipping Address with Billing Address NOT Name, phone number etc
It is NOT when a customer ticks “billing same as shipping address”
This is unticked
We are a delivery company so this is causing a lot of issues for us.
Hello, @PennyD1 ,
Rest assured, you can provide distinct billing and shipping addresses regardless of whether both options are enabled or disabled.
In case you’ve customized your Shopify checkout using an app and encounter this issue, we recommend reaching out to the app developer for assistance.
If you’re experiencing this problem with the default Shopify checkout, we advise you to get in touch with Shopify support for further assistance
I have this problem too, but every time I try to get help from shopify or my delivery app each one blames it on the other or tells me this couldn’t be happening. . . . 
