27 March 2018
Skyvia needs to be aware of this possiblity and have appropriate retry logic in replication packages.
The issue discussed here is related to Export packages, not Replication ones. Darryll, we have answered you regarding all the issues you have reported regarding replication in the corresponding topics.
As for the retry logic in scheduled packages, we plan to implement this functionality in future Skyvia versions. We will post the results here as soon as any are available.
Due to the fact that the "The remote server returned an error: (404) Not Found." error occurs at Salesforce side and reproduces inconsistently, we cannot give you the exact reason why it occurs.
We assume that this error can occur when, in the case of sending numerous authentication requests to the Salesforce service, some of these requests are not processed by Salesforce and this leads to this error. Also, this error can occur if a custom domain is used - for some reason, the redirection of authentication requests fails.
If this error occurs with any of your packages consistently, then we will try to test it and give you more details on it.