How can I find error category?

[ZPeng]

How many error categories are there in hubspot openapi, and where can I find them, just like VALIDATION_ERROR

[SamCBarth_LAIRE]

In addition to the one you mentioned I have come across

Not found

Conflict 

Permission error 

Rate limit

Authentication error

Internal error 

Temporary Unavailable 

External System Error

Migration Error

[RubenBurdin]

A resource I found useful for error debugging is this error-handling page from the developer documentation. Another useful resource is the usage guidelines and limits page, as some of your errors might show up from hitting API limits.

[ZPeng]

What I want to know is more detailed information about error classification, such as the error category VALIDATION_ERROR, which may contain errors such as data not meeting user-set requirements, such as exceeding the maximum value or falling below the minimum value. Where can I find out about this more detailed error classification?