HubSpot migration from a legacy or in-house CRM

Close the unsupported-system, undocumented-data, and messy-export gaps.

Three legacy-CRM problems HubSpot solves

A legacy or in-house CRM is unsupported and ageing, but it holds years of data that the business cannot operate without.

The old system's data is undocumented, so nobody is sure what every field means or how the records actually relate.

There is no clean export path, so the migration looks like it will mean rebuilding the data structure by hand.

Why is an unsupported CRM a growing risk?

PYB migrates the legacy data into HubSpot, a supported, modern platform, so the business stops depending on a system nobody maintains. The risk of an unsupported CRM failing is retired with it.
So when the migration completes, the data lives somewhere maintained and secure, rather than on an ageing system one fault from trouble.
An unsupported CRM is a risk that grows quietly. Moving off it is the only way to remove it.

Why is an unsupported CRM a growing risk?

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Why is the legacy data so hard to make sense of?

PYB profiles and documents the old data before moving it, mapping what each field means and how records relate, so nothing is migrated blind. The undocumented becomes understood, then rebuilt cleanly in HubSpot.
So when the data lands, its structure is intentional and clear, not a faithful copy of an unexplained mess.
Migrating undocumented data without understanding it carries the confusion across. Mapping it first is what makes the move clean.

Why is the legacy data so hard to make sense of?

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Why does no clean export make migration hard?

Where no clean export exists, PYB extracts the data directly and reconciles it against the source, so a system with no proper export path still migrates in full. The records arrive complete and checked.
So when the legacy system has no export button worth trusting, the data still makes the move, counted and intact.
A poor export path is what makes a legacy migration look impossible. A direct, reconciled extract is what delivers it.

Why does no clean export make migration hard?

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Name Insight Systems

Knowledgeable, efficient and honest support

"Working with PYB has been a pleasure, which is something I seldom say about CRM implementation. They were responsive and helped to rectify any issues that cropped up during the migration from our existing CRM."

Freya Feigenspan

Marketing Manager

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FAQs

How long does a legacy CRM migration take?

Most run 10 to 16 weeks, depending on how undocumented the data is. Weeks 1 to 6 cover discovery and architecture: profiling the legacy data, documenting it, and mapping it to HubSpot. Weeks 7 to 12 cover extraction, cleaning, and a reconciled import. Weeks 13 to 16 cover automation and training, so the team works confidently in the new system.

Can HubSpot model what our legacy system holds?

Yes. Once the legacy structure is documented, it maps onto HubSpot objects, properties, and associations, with custom objects for anything bespoke. The relationships are rebuilt cleanly rather than copied blind. PYB has migrated undocumented in-house systems that had no standard export path.

How do you migrate data with no clean export?

PYB extracts the data directly, profiles and cleans it, then reconciles the count against the source before the production import. A poor export path does not stop the migration; it just means more care in extraction. PYB holds the HubSpot Data Migration Accreditation for exactly this kind of work.

What HubSpot products does a legacy migration typically need?

Sales Hub or Marketing Hub Professional depending on the data, with Operations Hub for the cleaning and hygiene. Custom Objects (Enterprise tier) for structures the legacy system held that the standard records do not. PYB scopes the mix to what the data feeds.

Does HubSpot meet the security standards for retiring a legacy system?

HubSpot holds SOC 2 Type II and ISO 27001, a stronger footing than most ageing in-house systems. PYB adds its own ISO 27001, ISO 9001, and HubSpot Data Migration Accreditation. For moving years of data off an unsupported platform, that is the assurance a data owner needs.

Talk to PYB about migrating off a legacy CRM.

A 15-minute call to walk through retiring an unsupported system, making sense of undocumented data, and migrating it in full even without a clean export.

Book a 15-minute call