To grant access to the Subcontractor Portal, navigate to Contacts > Suppliers/ Contractors and select the company contact.
If you are adding a new supplier/contractor, click 
or 
.
Once you have selected your company contact, click 
to add your individual contacts.
Within the Add Contact side menu, enter all relevant details and click the tick box next to Enable Portal Access, followed by Save.
Now your contact will receive an email invitation to access the Subcontractor Portal. Once they set up their account, they’ll be able to view assigned tasks, documents, and any other information you’ve shared. After their account is activated, the access icon for that contact will automatically update to Enabled.
For details on how to set up a supplier or contractor portal, see this article.