What changes are required to the Input Definition to support '1-to-many' customer data relationships?

To support '1-to-many' customer data relationships in Pega, defining embedded pages is essential. When dealing with such relationships, the Input Definition needs to be updated to reflect how the data is structured in a way that allows for multiple instances of a single customer data entity to be represented.

Embedded pages are used to group data in a hierarchical manner, allowing for a parent entity (in this case, the customer) to have multiple child entities (such as orders, addresses, etc.). By incorporating embedded pages into the Input Definition, you ensure that the system can appropriately capture and manage these relationships within the application's data model.

Simply opening and saving the Input Definition or assuming that no changes are needed won't suffice to support complex data relationships. Recreation of the Input Definition is also not necessary, as the existing framework can be adapted through the proper embedding of pages. Thus, defining embedded pages and then re-saving the Input Definition is the correct approach to accommodate '1-to-many' relationships.