So we have a Nintex workflow with a Web Service in it. The web service is calling the List web services in the URL and is using our SharePoint install service account as the user/pass. It's been working fine forever and now today when you "Test Connection" we are receiving "An unexpected error has occurred".
Why are we now all of a sudden receiving this error? It throws this error if we have code in the Request Message or if that field is empty...same error:
Anybody have any suggestions here?
Is there _layouts/15 in the URL?
If so, remove it and try again.
Any changes in the authentication process for the SharePoint site or the firewall?
test connection has nothing to do with request content itself, it just checks whether host from URL is reachable and whether service endpoint responds on that host.
try to copy&paste URL into a browser and check whether service responds (correctly)
check whether certificates for https communication weren't outdated/revoked/renewed.
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