There is an announcement on the main zanox blog, about maintenance work that we will be carrying out over the last two weekends of October. I wanted to make it a bit more transparent on the developer blog about what effect this will have on our APIs.
Publisher and Connect APIs
Due to maintenance, we are going to set these APIs into read only mode for a couple of hours on the first weekend and if necessary, on the second weekend as well. For all you Publisher REST API users, this means that POST, PUT and DELETE requests will be returning HTTP 503 - Service unavailable. Publisher SOAP API will also deny all create, update and delete operations returning an HTTP 503 too.
The Connect SOAP API will deny promoting and closing sessions, creating new connects and getting UI URL.
All Publisher REST API GET methods and SOAP API get* operations will continue to work as expected. The essential for apps "getSession" and "getOfflineSession" in the Connect SOAP API will not be affected either.
Data API is not affected.
Unfortunately, access to the ERP API will have to be blocked during maintenance - you will not be able to log into the service.
Please note, that no data will be lost during the maintenance, and you will be able to catch up with your retrieve, update and create requests after the maintenance window.