Data migration is a core component of most HubSpot implementations, not an add-on. It covers the transfer of contacts, companies, deals, historical interactions, and activity records from a previous system into HubSpot. The process includes auditing the existing data, removing duplicates, standardizing formats, and mapping fields between the old system and HubSpot's data model.
Migration quality determines everything downstream. Importing dirty data, such as duplicate contacts, outdated emails, or inconsistent field values, leads to unreliable reporting and high email bounce rates that can damage sender reputation. Best practice is to clean data before import, move records in batches rather than all at once to catch errors early, and create a full backup before starting. For SaaS companies, migration may also involve syncing product usage data into HubSpot using Operations Hub or a custom integration. Lean Labs prices migration projects starting at $7,000, reflecting the complexity and risk involved in getting this step right.