This activity is used to update contract details on an existing valuation. A 
valuation is created based on a contract, and the contract 
may be modified during the  execution. During this phase it is common that contract contents (lines 
and items) change, and in some cases even the contract terms and conditions may change. When creating a valuation 
the contract contents are copied to and stored on the valuation, and if changes occur on the contract 
after the valuation has been created the contents of the valuation can become obsolete.
In certain situations it might be desirable to update the valuation with the latest contract details, and this can be done by 
refreshing the contract details on the valuation.