When you add a ServiceNow Action card to a Flow for the first time, you'll choose which instance to connect. This authorization will be saved and can be reused in other cards.
Note: You can create multiple connections and manage them from your Settings page.
To create a new connection from an Action card:
Click New Connection.
In the Connection Nickname field, type your preferred authorization name.
In the Username and Password fields, type your ServiceNow login credentials.
In the Instance field, enter your ServiceNow subdomain value.
You can find the ServiceNow subdomain value in the Manage > Instance menu in the developer portal or in the instance's URL.
For example, the instance is dev57240 in