As per this hands on challenge module - "https://trailhead.salesforce.com/content/learn/modules/marketing-cloud-next-email-sending-essentials/send-an-email-campaign", a segment for leads must be created in order to send an email. In my playground org, it was missing a leads data stream and I created one manually and then tried to select it in the quick start modal > segment selection modal. However, when clicked on save, I am getting an error message saying - " Hmm, that didn't work. Refresh the page and try again.
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I have tried refreshing the page, closed it and reopened it, but nothing seems to be working. How do I resolve this error?
#Trailhead Challenges
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