Hi @lolfav :
Q1 :First, what should be the connection name that I enter in the Cloudmersive Document conversion? How can I change this name?
The name of the connection does not affect anything, you do not need to make any changes. The only thing you have to do is to let the author of this connection share this connection with you, or I suggest you can consider creating a connection yourself, and then use this connection:
Plan1: let the author of this connection share this connection with you
Plan2: You could register a new account and get the API key
*get the API Key



*Create a new connection:


Plan3: Ask the connection's owner and get the key,then create a new connection using the key
Q2:And then, should I be connected to Power Automate with the same account which retrieved the API key from Cloudmersive? I am actually not the one who got the key, but another member of my organization.
The api key is universal, and it does not affect anything. You can let the owner of this connection give you this connection share, or create a connection yourself.
Best Regards,
Bof