At the Dynamics GP Support and Services Blog, Sarah Purdy looks at Microsoft Dynamics GP and the Concur Import
Microsoft Dynamics GP and the Concur Import – Microsoft Dynamics GP Support Blog – Site Home – MSDN Blogs
Microsoft & the GP EcosystemDevelopment & Integration
Archived post from 2012. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.