Mailchimp handles email marketing, SMS marketing, marketing automation and analytics and reporting for wealth management firms. Like every system in your stack it holds a slice of the firm — contact lists, campaign metrics, user engagement data and audience segmentation — under its own export limits, retention rules and terms governing what you may do with your own information. Milemarker starts with that question rather than with a pipeline. We help you establish what your Mailchimp agreement permits you to extract, store and reuse, then land contacts, email campaigns, engagement data and subscribers over a secure API connection into a Snowflake environment your firm owns and administers, normalized into a model that stays stable even when the systems around it change. From there Mailchimp data is no longer a silo. It joins your custodial feeds, portfolio accounting, billing and planning data under one set of rules — row-level entitlements, PII masking and SOC 2 Type II controls you set, rather than the scope any one vendor happens to offer.