VERIFIED SOLUTION i

How to tell if one transaction corresponds to one call of the web service or to one start/destination combination

One transactions corresponds to one call of the web service for this particular case.

To be more specific, one transaction corresponds to one row in the request message (or response depending on the contract).

Since all start/end points are part of the same input/output row, it is counted as one transaction.
Environment Details
Product Feature: Get Travel Boundary

Version: 7,8,9
 
UPDATED:  March 28, 2017