Phone numbers that don't match Shopify's required format might throw an invalid shipping address error.
As of 2023, Shopify has changed the requirements for what format a phone number must be in for a customer's shipping address.
Tip: To check your store's Shopify settings on requiring a phone number for orders, navigate to Settings > Checkout and scroll to Shipping address phone number. We recommend this be set to either or Don't include or Optional. If set to Required, than all previously purchased customer subscriptions without a phone number will fail to process.
If your store has Required checked for customer shopping address phone number, the phone number must match one of the formats required by Shopify. For US-based phone numbers, (starting with +1), these formats include:
- +1 ###-###-####
- (###)###-####
- +1##########
- ##########
For example:
- +1 234-567-8901
- (234)567-8901
- +12346578901
- 2346578901
Do not use the + symbol without a country code (ex. +2346578901). Additionally, text input will not be accepted, so you can't write anything like "None" or "No phone number provided".