In Coassemble, there are a couple of scenarios where your learners' can be locked out of a course. This update clearly marks courses that are not accessible by displaying the course availability date, or the prerequisites they must complete first before they are granted access. 

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By default enrollment links never expire (unless you delete them). This update allows you to have your enrollment links expire on a set date, or after a set number of learners have been enrolled via the link.  

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