feat(customers): CUST-391 allow enter empty phone number when updatin…

[victor-ivanov]

What?

allow enter empty phone number when updating account settings in storefront

Tickets / Documentation

Add links to any relevant tickets and documentation.

• Jira

PR for server side which updates account validation to allow empty phone numbers https://github.com/bigcommerce/bigcommerce/pull/27974

Screenshots (if appropriate)

Attach images or add image links here.

@bigcommerce/storefront-team @bigcommerce/customers

[bigbot]

Autotagging @bigcommerce/storefront-team @davidchin

[Ubersmake]

Please note that this is not the same thing as STRF-4102, which was addressed in https://github.com/bigcommerce/bigcommerce/pull/24290.

[victor-ivanov]

I've executed basic, full ui, full http, full api test suites on PR with this theme applied https://github.com/bigcommerce/bigcommerce/pull/28004

full api fails due to 429 [reason phrase] Too Many Requests but I dont think it related to theme changes.

We are going to start manual testing on this PR to validate that problem with phone update was fixed.

@bigcommerce/storefront-team could you please review this PR?

[Ubersmake]

Merging this. Some important thing to keep in my mind regarding this ticket/feature:

• Customer Phone Number is different from Address Phone Number
• When a user creates a new account through the storefront, the phone number they enter is copied to both the Customer and Customer Address.
• When a user edits their account, the phone number they enter there only affects the Customer Phone Number.
• Form Field requirement settings only apply to Address Phone Number.

At present, on the Bigcommerce backend, Customer Phone Number is optional. Address Phone Number is determined by the merchant.