Cannot add JIRA events to calendar

[Saad Patel]

Getting

Error occurred while validating project against [JIRA (myproject.atlassian.net)]

when I try to add a range between two custom date fields from a Project. I heard JQL will help, but not sure how to express this in JQL. Any help appreciated! Thanks!

[Saad Patel · Accepted solution]

Ok found the problem. My project key was the reserved word "TO."