Configure SA Types for Umbrella Agreements
For each type of service agreement that may be linked to a terms of service record, you must configure the Rate Source for the SA type to indicate if the rate should always be taken from the service agreement ( Check SA Only ) or if the rate should be taken from the terms of service record for the service agreement, if any ( Check TOS First, then SA ).
Fastpath: 
Refer to Overriding Rate Terms for more information.
Note: 
The rate source is only visible on SA type if the Contract Management module is not turned off.