There are three possible reasons as to why you will not be able to perform this action:

- The Company does not have a Contract list created. To generate the Contract list, open the Company record and click on the Contract/PACT list button.

- There is no Stock Code for the item in Prima, i.e. the item has not been sold or purchased through Prima previously. You need to 'Make Product' first before you can add the item.

- The Sales Order/Quote is not in a status of Outstanding. The status has to be Outstanding to be able to add the item to a Contract.