I run a Shopify online shop and my customers usually pay with PayPal. Unfortunately since yesterday in the PayPal checkout the error message "Enter a valid phone number" occurs, although I have set it in PayPal so that no phone number is necessary. Any help would be great ... !!!
I run into this as well, where I will do express checkout, everything will be filled out except phone number, which is in red like an error has occurred and asks for a valid phone number. Have my phone number on my PayPal account and working well with two-factor authentication and on certain sites I've tested where they have my phone number in their system on my account.