Create a campaign-specific report for WhatsApp Business account. The projections field contains a comma-separated list of field names:

• country_code: The country code of the recipient's phone number.
• msisdn: The recipient's phone number.
• message_type: The type of the message, such as text, image, and video.
• message_payload: The content of the message.
• request_id: The unique ID assigned to the message by the WhatsApp Business API.
• conversation_id: The ID of the conversation thread.
• message_id: The ID of the message.
• submit_timestamp: The timestamp of when the message was submitted to the API.
• sent_timestamp: The timestamp of when the message was sent to the recipient.
• delivery_timestamp: The timestamp of when the message was delivered to the recipient.
• read_timestamp: The timestamp of when the message was marked as read by the recipient.
• failed_timestamp: The timestamp of when the message failed to be delivered.
• deleted_timestamp: The timestamp of when the message was deleted.
• extra: Additional information about the message.
• pricing_model: The pricing model used for the message.
• scheduled_time: The scheduled time of the message, if it was a scheduled message.