How do I create client portal which they only can access?

[Denis S]

need to create a user/client portal where they can log and create issue for their speciific use only and not be able see other clients 

[Petter Gonçalves]

Hello Denis,

You can do it by configuring your JIRA Service Desk without any Organizations, allowing only single customers to be added to your Service desk and configuring the Customer Permissions of the project like below: