Getting a 422 Error - What’s Causing It and How Do I Fix It? or Why Am I Seeing a 422 Error and How C

Been there! 422 often means backend validation failed. Some APIs return *what* failed in the response—check for a "errors" or "validation" key in the JSON.

For debugging, I use httpie (like curl but prettier) to quickly test tweaks. Command:
```
http POST [url] field=value
```

Also, try sending the bare minimum payload (just required fields) and add stuff back until it breaks.