Dynamic Packages are packages which where Rates change dynamically with may change (i.e., different daily prices and/or different per person pricing) from the Rate plan it is attached to; as well as Items that are included in the Package may vary (i.e. quantity and price and deposit) based on how many days are booked.
For example, a Ski package might have 2 lift tickets included with a 3 night minimum stay in a Queen Room. The Queen Rate is currently $100 and the lift tickets are $35 each. The total package will calculate at $300 + $70=$370. If the Queen Rate changes to $110, then the Package Rate will automatically adjust to $400. Or, perhaps you want to discount a package by 10% off of the regular Rack RateIf the stay were for 5 days, and each day had a 'recurring lift ticket' then there would be 5 x $35/ea for ski lift tickets added to the room price.
Once a package is set up, then it must will be allocated in Agent Relationships to appear on your website, OTA, or GDS. See Allocating Packages
See below for details on setting up a Dynamic Package.