Getting a 422 Unprocessable Entity Error – What Am I Missing? or How Do I Fix a 422 Unprocessable Ent

Been debugging a 422 unprocessable entity error last week—turned out the API expected ISO dates but I was sending local time strings.

Tools like Postman or Insomnia can help visualize the request/response cycle. Also, check the server logs if you have access! Sometimes the error message there is way clearer than the HTTP status.