We are writing to inform you that as part of our continuous efforts to improve the performance and reliability of our REST API platform, we will be performing a maintenance to standardized the error codes in the delivery receipts starting at the time specified below.
Updated error codes can be found here - https://developers.sinch.com/docs/sms-smpp-error-specification#section-status-reports-error-codes
Also, please continue to use the 4xx error codes found here - https://developers.sinch.com/docs/sms-guide#section-delivery-report-error-codes
Start Time: 2020-06-30 05:00 UTC
End Time: 2020-06-30 07:00 UTC
Impact MT: No REST API traffic impact expected
Impact MO: No REST API traffic impact expected.
Impact DR: Updated error codes will be returned in the REST API delivery receipts
We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled, we will advise you accordingly.
Please contact email@example.com
should you require further information or assistance.