The first step to configure this is to identify the next two values of the business you want in your editor.
The first value is the ID of your business, you can find it here:
The second value is the custom slug of your business, you can find it after open the business details in the ordering channels section:
Now you have those two values need to go to your builder (my.ordering.co) and enable the Single Website checkbox.
Now you need to configure which business do you want to be shown.
FOR WEBSITE: Write the slug of the business
FOR APP: Write the ID of the business
And after you rebuild your website and apps, will be configured successfully as a single business.
Glad we can help
Regards, Pol Zepeda