Failure to connect to host, Access to application "Sage 100 Link" is denied.

SUGGESTED

Sage 100 Advanced 2014, Sage CRM 7.2.b.  Quick Order Entry has been installed and selected for the user.  When I select new quote/order in CRM, I receive message "Failure to connect to host Access to application "Sage 100 Link" is denied.  I cannot figure out what the permissions issue is.