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David PrattDavid Pratt 

Trailhead Account not linking to correct Salesforce Account


I am unable to complete the very basic Install Assessment App challenge because when I do it automatically signs me in to a previous Salesforce account, even if I access the App Exchange directly from my Trailhead Playground. Thus whenever I try to complete the task it does not find the app on the version of Salesforce it is checking. Please advise.
manoj krishnamanoj krishna
Hi David,
You can not directly install packages/apps in salesforce trailhead playground. Please follow this link ( for the steps to install the apps

Maheshkumar Selvaraj 10Maheshkumar Selvaraj 10
When you install package, make sure that the url domain is pointing to playground Org and not the trailhead Org.
Trailhead url need to be changed before clicking 'Install'