Trailhead Challenges

Hands-on challenges are the “secret sauce” of Trailhead. Before searching for solutions to superbadge challenges, review the Salesforce Certification Program Agreement and Policies. ** NOTE ** : If you were able to get a response that solved your issue, please mark it as the 'Best Answer' to help other Trailblazers. If the issue persists after 48 hours, create a Trailhead Help case at https://help.salesforce.com/s/support for further assistance.

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it is showing invalid parameter in line 0 in suscribe

Trailhead Challenges

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