Link between MACHINES and CONTSERV

SUGGESTED

Is anyone familiar with linking the MACHINES (Installed base) and CONTSERV (Service Contracts) tables? I am trying to create a crystal report to print from the installed base screen with a summary of all the related service contracts.

From the installed base screen, the contracts are related under the applied coverage area. From the service contract screen, the related installed bases can be found under Covered Base from the right panel.

I checked the CONTITM table which has the CONNUM and MACNUM fields, but that table is empty.