How can I add custom button on the checkout page?

Site URL: https://heron-beagle-fehc.squarespace.com/?password=1

I want to add a custom button on the checkout page, How can i add it? 

you have to share the password of your site. 

15 hours ago, noahawaii said:

you have to share the password of your site. 

Password is 1

it says private site. I know you have to change the permissions somehow so that people can access it with a password

On 4/28/2022 at 6:00 PM, noahawaii said:

I know you have to change the permissions somehow so that people can access it with a password

@Munna

Helping noahawaii out with the info.

Please set up a site-wide password, if you've not already done so.

Adding a site-wide password does not allow anyone to alter your site. It only allows those with the password to see your site. Please read the documentation at the link provided to understand how it works.

We can then take a look at your issue.