Explanation:

Scenario: You must develop a new solution to maintain a Vendor exclusion list for each customer and item combination. The solution must meet the following requirements:
* Isolate all new vendor exclusion codes as a new assembly by creating a table named VendExclusions.
* Create an index for the table named PrimaryIdx that uses the following fields: CustAccount, ItemId, VendAccount.
* Ensure that users can open the Vendor Exclusion list report from the customer master form. The list must display the customer account, Item ID, and Vendor account fields.
* Maintain referential integrity with other tables.
Box 1: a table extension for Vendors and relation for the Vendor exclusions Box 2: RelationShip Type Reference:
https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/data-entities/develop-composite-data-entiti