Sometimes the Dinner element of a D, B&B rate will entitle guests to choose from a set menu, in which case any items would not need to be posted to the room. (Or alternatively you may wish to add a zero value 'Set Dinner, included in rate' item on your EPOS system for your records.)
In cases where a guest is able to order from the à la carte menu, you may wish to provide an allowance against the value of any items that are posted to the room.
We suggest creating an Extra for this with a negative "Price" value representing the allowance.
You might also want to tie this to the D, B&B rate only, by clicking the yellow "Rate Plans" button above :
You can then add the "Dinner Allowance" extra to the room, and adjust it's value to the amount you wish to credit for the dinner element paid for in the rate.