Azure logic apps - How to resolve GraphUserDetailNotFound in the same tenant ?

Hi,

I created a logic apps with the teams connector "Post message in a chat or channel".

I am connected as "myaccount@tenant.com" and want to post the message to an existing account eg. "anotheraccount@tenant.com".

I got the following error :

{
  "error": {
    "code": "GraphUserDetailNotFound",
    "message": "No user details with email or UPN 'anotheraccount@tenant.com' were found in Graph."
  }
}

How to resolve that problem ?

• If it's a license problem, what kind of license does "myaccount@tenant.com" need ? currently i assigned teams essentials and power automate free
• If it's a permission error, what api permission does I need and how to assign that ?

Thank you for your help