How can I get a customer's phone number from instant profile?

[gkawin]

Dear all,

I am trying to obtain the customer's phone number using the Square Webhook API. I anticipate collecting the phone number after sending the receipt to their mobile phone.

Please don't misunderstand; I intend to use the number in order to send a cooking status via SMS. The issue is that I am unable to retrieve it due to Square's instant profile restrictions. However, I understand the importance of privacy. Still, I find it a bit too strict for my fellow applications. I would like to discuss with you how to obtain the customer's phone number after they enter it at the Kiosk or the POS.

Thank you for any responses in advance.

[Summer2024 · Accepted solution]

Hi, @gkawin ! 

Square intentionally restricts access to customer contact information to protect customer privacy and comply with data protection regulations. When a customer enters their phone number for a digital receipt, this doesn't automatically grant permission for other communications.

Compliant Solutions:

Recommended Approach: Explicit Opt-In

• Add a checkbox or prompt during checkout asking: "Would you like to receive SMS updates about your order status?"
• This can be implemented using Square's Custom Fields feature in your POS/Kiosk setup
• When customers explicitly opt-in, you can legally collect and use their number

Alternative Solution: Separate Sign-Up Flow

• Use Square's Loyalty API to store customer information with proper consent

Integration Points:

• Orders API - to track orders
• Customers API - to manage customer profiles
• Loyalty API - to maintain customer relationships

I hope this helps!