Oh AOS why have you forbidden me

Sometimes when services are trying to authenticate to an AOS in Dynamics 365 for Finance and Operations, both in the Cloud version and the on-premises version, the calling application may receive the error message “forbidden” back from the AOS. This message is deliberately vague, because we don’t want a calling application to be able to…


Authenticate with Dynamics 365 for Finance and Operations web services in on-premises

This blog explains how to take the standard examples for Dynamics 365 for Finance and Operations integration from Github and authenticate to an on-premises instance of Finance and Operations. At the end you’ll also find some troubleshooting tips if it doesn’t work first time, which can be useful for any scenario where something is trying…