Colleagues, As any long-time consumer of IQIVA OneKey files is aware, IQVIA used to deliver a full extract each quarter. Now they have moved to a methodology of delivering an "INIT" (aka the Initial data load you get) that has about 26 files for the US, followed by daily update files; same set of files but only changes are provided and each record of each file can carry an indicator of INSERT, UPDATE or DELETE. As as result, the files that hold Addresses, Phones, Emails, Identifiers provide surgical updates to a specific item like a single phone number or a deletion of a single address. Since these kinds of data tend to be modeled in Reltio as nested attributes, incremental updates can pose a challenge in propagating those updates into a nest properly, especially if the incremental change is a DELETE of an item. Curious if anyone has also struggled with how to manage their nests in this circumstance, and what approaches you have taken.