Microsoft Dynamics GP 10 Workflow SDK is now available for download via PartnerSource or CustomerSource. This is the tool that you've been after if you want to extend or modify the GP10 workflow.

The links are as follows:

PartnerSource

https://mbs.microsoft.com/partnersource/downloads/releases/workflow+sdk+for+microsoft+dynamics+gp+10.0.htm?printpage=false

CustomerSource

https://mbs.microsoft.com/customersource/downloads/servicepacks/workflow+sdk+for+microsoft+dynamics+gp+10.0.htm?printpage=false

Posted by Tom Brookes