Links-and-resources.md

@@ -67,3 +67,6 @@ with [Swagger JSON](https://raw.githubusercontent.com/OpenBankingUK/read-write-a
 
 [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.
+
+[DSS Error Codes](https://gocardless.com/guides/sepa/receiving-sepa-dd-messages/)
+Some error codes with descriptions for SDD.
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