Is it possible to make the phone number mandatory ONLY for a specific shipping method?

Topic summary

A user asks whether the phone number field can be made mandatory only when a specific shipping method is selected at checkout, while remaining optional for others.

Current Limitation:

  • Shopify does not natively support conditional field requirements based on shipping method selection.

Possible Solution:

  • Shopify Plus merchants can implement this functionality using:
    • Checkout Scripts (legacy checkout)
    • Checkout Extensibility (new checkout)

Recommendation:

  • Contact Shopify support for detailed implementation guidance or alternative solutions.
Summarized with AI on November 1. AI used: claude-sonnet-4-5-20250929.

Is there a way to configure the checkout process so that the phone number is required only when a specific shipping method is selected, while remaining optional for other methods of shipment?

Hi!
Shopify doesn’t natively allow making checkout fields mandatory based on the selected shipping method.
However, if you’re on Shopify Plus, you can use Checkout Scripts (for the old checkout) or Checkout Extensibility (for the new checkout) to require a contact number for specific shipping methods.
For more details or alternative solutions, it’s best to reach out to the Shopify support team.