The GUMU™ X3 CRM integration is published by Greytrix. Greytrix has been a Sage CRM development partner for over 20 years and has an excellent reputation within the global Sage Community.
Aside from this integration with Sage X3, Greytrix also publishes the best integration between Sage CRM and Sage 100, as well as Sage Intacct. Beyond Sage CRM, Greytrix also publishes the leading integration between Sage X3 and SalesForce.com.