Errors arrising in operating with the system

When creating a transaction, any error other than 5xx can be considered an unambiguous failure. Exceptions:

• Error 306 when creating a transaction.

• Getting a 1xx or 422 error when creating a status request, this is a request error, not a transaction error.

The list of all possible errors is presented in the following table:

Code	Description
1XX	Authorization error, request format error
101	Merchant is not found
102	Wrong request signature
103	The required request header is not found
104	Wrong request format / JSON is not correctly structured
105	IP is not whitelisted
2XX	Request content errors
201	Mandatory field is not found
202	Payment system is not found or not available
203	Payment system does not support the transaction type (deposit or payout)
3XX	Data validation errors
301	Wrong field format
302	Transaction is not found
303	Amount is less than 0 after fee calculating
304	User is not found
305	Insufficient balance
306	Transaction with number transaction_id is already exist
307	Antifraud validation check failed
308	Transaction has wrong status
4XX	Payment system errors
401	Error on the side of Payment system, more detailed information will be specified in the field “message”.
422	Request error, more detailed information in the fields "message” and "errors".
5XX	Olympz server errors
501	Error on the side of Olympz server, more detailed information will be specified in the field “message”.