This field is used to determine the access to the product coverage function. If this field is ticked, the product coverage management function is inaccessible. It signifies that the contract applies to all the products ordered by the customer. In this way a sort of super contract is obtained. If this field is not ticked, the contract can then contain two restriction types. 1 / Restrictions related to the coverage of a certain number of identified serial numbers. 2/ Restrictions related to a group of serial numbers sharing the same product reference. These restrictions are expressed in the "Covered products" function. "Functions - Covered products " menu.