Ian Grieve looks at Integration Manager Error – Object Reference Not Set To An Instance Of An Object. This is almost always a problem with a source data connection, but Ian’s problem was a little different.
Integration Manager Error – Object Reference Not Set To An Instance Of An Object | azurecurve
Development & IntegrationInstall, Upgrade & Admin
Archived post from 2013. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.