Status Code
Here are the error codes you might encounter along with their descriptions.
Sample error codes
"SP.400.000": "Bad Request", #Invalid input
"SP.401.000": "Unauthorized",
"SP.403.000": "Forbidden",
"SP.404.000": "Not Found",
"SP.409.000": "Conflict", #Duplicate entry issues
"SP.429.000": "Too Many Requests", #Request throthled
"SP.500.000": "Server Error",
"SP.502.000": "Bad Gateway", #The downstream server is unreachable or offline.
"SP.503.000": "Service currently unavailable", #Service currently unavailable
"SP.504.000": "Connection Timeout" #Service currently unavailable.
"AC01": "Bank account not found" # The bank account was not found.