Hey, I'm trying to finish my Salesforce Integration Certification but it shows that I need to do the practical exercise. Because I'm using my company's HubSpot, and we don't have salesforce, I can't install it on our account. But I've already worked with salesforce and done all of what the certification asks on other accounts.
Thank you for reaching out to the academy community page! I'm happy to help out with this. I would recommend to create a free Salesforce developer account to complete the exercises. This account isn't tied to any existing Salesforce instance, so it makes it easier to set up permissions and complete the exercises. There's a full list of instructions on how to do this both in the certification as well.