What does a 400 status code typically indicate when using Axios with Gmail?

A 400 status code, often referred to as a 'Bad Request,' usually means that the server understood your request but was unable to fulfill it due to something wrong with the request itself. When using Axios to interact with Gmail's API, this often indicates that the data you're sending (e.g., in a POST or PUT request) is malformed, missing required fields, or doesn't conform to the expected format as defined by the Gmail API.