Are you using Senta for your accountancy practice or are you using the client portal?  

[IF THEY ANSWER ‘CLIENT PORTAL’]

The login url for the client portal is the same one that the practice uses. So you access the workspace via the practice name .senta.co, for example https://example.senta.co. If you are having issues with logging in you may want to contact your accountant directly as they can sort this out for you.

[IF THEY ANSWER PRACTICE]

Your URL will be your practice name .senta.co, for example https://example.senta.co