The following error codes can be raised by the Verify web service calls:

Code	Description
`CountryIsoCodeInvalid`	CountryIsoCode* field is invalid due to not following ISO 3166-1 alpha 3.
`FromContainsDisallowedCharacters`	From_ field contains characters outside the GSM character set.
`FromEmpty`	From_ field is empty.
`FromExceedsMaxNumericLength`	From_ field is longer than the maximum numeric length of 15.
`FromExceedsMaxTextLength`	From_ field is longer than the maximum alphanumeric length of 11.
`FromUnderMinTextLength`	From_ field is shorter than the minimum alphanumeric length of 2.
`FromReserved`	From_ field is reserved and cannot be used by your account.
`InsufficientCredit`	If your account is pay as you go, this error is returned if there is insufficient credit on the account to complete the requested operation.
`InvalidJson`	The supplied JSON payload is not formatted correctly, for example, missing required parameters or doesn't conform to JSON format.
`ToEmpty`	To_ field is empty.
`ToInvalid`	To_ field is invalid due to the phone number not being formatted correctly, for example, too long, too short, or not a number.
`ValidUntilMinExceeded`	ValidUntil_ field is before the current time and the message cannot be sent.
`ValidUntilMaxExceeded`	ValidUntil_ field is invalid due to time being more than 30 minutes in the future.
`Throttled`	Maximum frequency of sending to a single phone number from your account has been exceeded.