The role in practice
When delivering, the app account and recorder password sometimes get mixed up. As a result, a user may see a picture but not be able to explain who can remove or re-enable access.
A Hik-Connect account allows mobile viewing, but requires a clear owner and a manageable recovery path.

When delivering, the app account and recorder password sometimes get mixed up. As a result, a user may see a picture but not be able to explain who can remove or re-enable access.
Make sure to determine which account becomes the owner and who only needs shared viewing access. Check where the verification code and recovery information are securely managed.
Use a personal owner account and share access with other users with appropriate permissions. Do not change a code without recording which app links must be re-confirmed afterward.
Test by using a shared account outside the own Wi-Fi network and then remove a test user. Verify that the owner can still manage the system.
No. They are different security data with different features.
Yes, but use shared access instead of one shared main account.