Links-and-resources.md

@@ -66,4 +66,7 @@ with [Swagger JSON](https://raw.githubusercontent.com/OpenBankingUK/read-write-a
 - Set of classes with ISO 20022 messages' definitions.
 
 [SEPA Implementation Guildelines](https://www.europeanpaymentscouncil.eu/search?kb%5B0%5D=authored_on_by_year%3A2018&kb%5B1%5D=tags%3A141&kb%5B2%5D=type%3A86&node=1126)
-- Information about mandatory endpoints, message formats etc.
\ No newline at end of file
+- Information about mandatory endpoints, message formats etc.
+
+[DSS Error Codes](https://gocardless.com/guides/sepa/receiving-sepa-dd-messages/)
+Some error codes with descriptions for SDD.
\ No newline at end of file