Great Nguyen,
I realize that, despite having the Reader role, you are unable to create a Microsoft Purview account. I can assist you in extracting the permissions you require from the shared list.
Microsoft.Purview/accounts/write is the most essential permission you need. This permission enables the creation of a new Purview account. If you do not possess this permission, you will be unable to establish a new account regardless of any other permissions you may possess.
Other potential beneficial permissions include:
Action for Microsoft.Purview/accounts/assign/action This permission enables you to assign roles to Purview account users.
Microsoft.Purview/accounts/regenerateKey/action This permission permits the regeneration of an account's access credentials.
Microsoft.Purview/accounts/start/action and Microsoft.Purview/accounts/stop/action allows you to initiate or terminate a Purview account.
Microsoft.Purview/accounts/delete: This permission permits the deletion of a Purview account.
Microsoft.Purview/accounts/write key/operation: This permission enables you to save a Purview account's access keys to a file.
Microsoft.Purview/accounts/read: This permission enables you to read the account information for a Microsoft Purview account.
You can inquire with your subscription manager about the precise permissions you require. You are not required to request every item on the list.
I hope this is useful!
Regards,
Dr. Gomathi S