Email account in Shopify vs paypal account

Hi,

I’m a newbie in Shopify and going to setup the store for company as sales funnel. We used the company email on the contact information. Now we are going to make the paypal express checkout and found it using the same email as the contact information. in this case if my contact information vs my paypal account not the same, should I change the contact information to the paypal’s one and complete the paypal setup, then change back the contact information to another later on?