When creating an API to interact with Cisco Meraki MV cameras, the request header must specify the correct content type to ensure the server understands the format of the request data. Setting the Content-Type header to "application/json" indicates that the request body is formatted as JSON. This is essential for APIs that expect JSON data for requests and responses. Additionally, the API must be scheduled to run automatically at 6 p.m. every day. This can be achieved using a cron job or a scheduling tool like cron in Unix-based systems or Task Scheduler in Windows. Reference: Cisco DevNet Associate Certification Guide Cisco Meraki API Documentation