Migrate from HighLevel to HubSpot

Tag cardinality explosion forces property-type decisions before migration runs

HighLevel stores tags as string arrays on contacts and opportunities. When a HighLevel account has hundreds of unique tags — common in agency setups managing multiple client brands — HubSpot's pick-list limits become a constraint. FlitStack analyzes tag cardinality before migration and decides per field: low-cardinality tags become HubSpot multi-select properties, and high-cardinality tags become comma-delimited text properties. This decision is documented in the mapping plan and reviewed with you before the migration run commits, because changing a HubSpot property type after data lands requires a data migration of its own.

HighLevel workflows have no equivalent in HubSpot and cannot be exported as runnable automation logic

HighLevel's workflow builder uses a trigger-condition-action model with deep integration into HighLevel's internal objects and sub-account context. HubSpot's workflow engine, lists, and sequences are architecturally different — there is no field-level export that translates HighLevel workflow logic into HubSpot automation rules. FlitStack exports your HighLevel workflow definitions as structured JSON describing triggers, filters, and actions so your HubSpot admin has a rebuild reference. But the rebuild itself is manual and is scoped as a post-migration activity in the project plan.

Multi-sub-account schema deduplication adds a planning phase before any data maps

Agencies using HighLevel's white-label sub-account model may have different custom fields, pipelines, and tags per client sub-account. When consolidating into a single HubSpot portal, FlitStack must deduplicate these schemas first — identical custom field names across sub-accounts merge into a single HubSpot property, while conflicting definitions require your team to choose a canonical definition before mapping proceeds. This schema-consolidation step adds planning time and is the most common source of migration delays in HighLevel agency migrations.

HubSpot's contact-company model requires a primary companyId, but HighLevel allows N:N associations

HighLevel contacts can associate with multiple companies natively. HubSpot's contact model has a single primary companyId lookup plus a separate contact-company associations table for additional links. FlitStack migrates the most-recently-modified HighLevel company association as the HubSpot primary companyId and surfaces remaining associations in HubSpot's contact-company association list. Contacts with no company in HighLevel land as unassigned in HubSpot — you decide how to handle these post-migration.

SMS and phone data lives in HighLevel contact properties and activity logs, not a separate object

HighLevel's telephony data (call logs, SMS threads, voicemail) is stored as contact-level activity logs and contact properties. HubSpot captures calls and SMS as engagement activities on the contact record. FlitStack maps HighLevel call logs to HubSpot engagements with call-type metadata and preserves SMS thread bodies in HubSpot's engagement timeline. Voicemail recordings are stored as file attachments on the contact record in HubSpot.