While editing configuration information in Gro, you will often run across places where you will need to make changes in multiple places to see the effect you want. This is because certain Gro features require you to update not only the text content, but some of the underlying logic. For example, to edit the appearance of the Summary Screen, you can change both the messages that appear (editable in the client.custom.messages.en Type ID) and also the circumstances that control what displays (editable in the client.webapp.products.productTypes Type ID) such that a certain message appears when the application for a specific product was processed vs. a different message appearing when the application for the product is referred.
Generally, Gro stores almost all English-language client-facing messages in the client.custom.messages.en Type ID. Configuration is organized by the function of the data, rather than by product or workflow.