Shotgun access to client

I want to provide shotgun access to my client I have one license but issue is he is not able to login need help on that wat will be the best practice to do in this case if I want to provide client access for review.

For review you could use teh Client Review Site which does not require a license for your client.

If you client needs more access then you can give them a licensed account and Vendor Permissions so they can only access things assigned to them.

can anyone tell the process to share client review because i can find it i can create client user but in playlist there is no share option

It’s described here:

Open yourn playlist in the Media page and the go from there.