In the case of contracts that do not have an expense, normally contracts for the management of public and special administrative services, they must be reported with amounts of 0. In order to inform the Registry that they have an amount of 0 for both the tender, the estimated value and the award, it is necessary to mark the "flag" of amounts to be determined, since if this field is not marked, the Registry will require these amounts to be reported.

In the event that these no-cost contracts also involve some type of income for the contracting body, this must be reported in the "other economic data" section found at the lot level in the case of contracts: for management of public services, concession of public works, special administrative and public-private collaboration.