The Opportunity process type has a set of base transactions defined for it.
A transaction is a logical unit of work that is necessary for performing activity within Sterling Selling and Fulfillment Foundation. Base transactions are predefined transactions that contain information about how the transactions behave. Base transactions can be used to create new transactions. These transactions can also be changed within the limits defined in the base transaction.
To view the transaction details pertaining to an Opportunity Fulfillment pipeline: