Login into My Heartist Portal >> Click on the T&C Back Office tab under My Admin Actions.
Expand the INES Administration tab >> Click on Administrate your INES Admins >> Search Hotel/Corporate entity.
Click on the Business Unit to see the list of INES Admins.
To add a new INES Admin for a hotel, scroll down to the ADD new INES admin section >> Search and Select the Hotel/Corporate.
Click on Target INES Admin dropdown >> Search and Select the employee’s name.
Click on Add. 
Click on Ok.
Now you can see that the recently added admin’s name is available in INES Admin List.
Once newly added admin refreshes their My Heartist portal, he/she can access new hotel.