Field help (FLGFAS3) 

This check box is used when the Fixed Assetsmodule is managed.
When it is activated, it is used to identify the product as capitalizable, that is to say, that can be referenced on an expense saved by direct entry or automatically generated upon the posting of a stock miscellaneous issue movement.

SEEINFO When the expense is created by validating a purchase invoice, the product does not need to be set up for capitalization: if the product can effectively be capitalized, the expense creation will be carried out automatically.However, if the product is not fit for capitalization, the expense will be created only after validation of a confirmation message.In both cases, the creation is authorized only if the setup of the account on which the invoice line is allocated allows it (check boxes Fixed asset tracking and Expense creation activated).