First, login to Salesforce with admin access.
Next, Depending on your Organization, the Setup button will be beside your name at the top right of the page or listed as a drop-down option when you click on your name.
1. Choose one of the following in Salesforce Classic User Interface:
· Click on Setup | My Personal Information | Grant Login Access.
· Click on Your Name | My Settings | Personal | Grant Account Login Access
2. Set the access expiration date for "Spinify Support".
3. Click Save.