CRM migration
Field-level mapping, validation, and rollback between VaultRE and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
VaultRE
Source
Mailchimp
Destination
Compatibility
12 of 12
objects map 1:1 between VaultRE and Mailchimp.
Complexity
BStandard
Timeline
24–72 hours
Overview
VaultRE stores real estate contacts with role-based types (buyer, seller, tenant, landlord), custom database fields, and property associations. Mailchimp models its audience as subscribers with merge fields, tags, and segments. This migration pulls every VaultRE contact with a usable email address into a Mailchimp audience, converting VaultRE contact types into Mailchimp tags or segment criteria. Custom database fields from VaultRE become Mailchimp merge fields so your campaigns can still reference property preferences, enquiry sources, or agent assignments. We do not migrate VaultRE properties (Mailchimp has no property object), automation workflows (VaultRE triggers do not transfer to Mailchimp Customer Journeys), or campaigns — those belong to the source system. The migration runs via Mailchimp's API import using your audience API key, with a test-batch validation before the full run commits. Owner assignment maps VaultRE staff to Mailchimp tags so you know which agent's sphere each subscriber came from. A 24–48 hour delta window captures contacts added or updated during cutover.
Every standard and custom field arrives verified.
AI proposes the map; you confirm before any record moves.
Parent–child, lookups, and ownership stay linked.
Calls, emails, meetings — with original timestamps.
Documents, uploads, and inline notes move with the record.
Why teams make this switch
Leaving
What's pushing teams away
Choosing
What's pulling them in
Object mapping
Each row shows how a VaultRE object lands in Mailchimp, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
VaultRE
Contact
Mailchimp
Subscriber
1:1VaultRE contacts with a valid email address become Mailchimp subscribers. Email address is the primary key on both sides — it is the field that links VaultRE's record to Mailchimp's subscriber identity. Contacts without an email address are excluded from the migration.
VaultRE
Contact Type (Buyer)
Mailchimp
Tag + Segment
1:1VaultRE contact types (buyer, seller, tenant, landlord) are role-based labels that can appear simultaneously on a single contact record. In Mailchimp these map to tags (e.g., tag 'Buyer') plus segment filter rules that reference the CONTACT_TYPE__c merge field, enabling campaigns to filter subscribers by their VaultRE role. This approach preserves the multi-role capability that VaultRE supports natively.
VaultRE
Contact Type (Seller)
Mailchimp
Tag + Segment
1:1The Seller role from VaultRE maps to a Mailchimp tag named 'Seller' and a segment filter rule targeting contacts where the CONTACT_TYPE__c merge field contains 'Seller'. This maintains the role segmentation your agency used in VaultRE for property campaign targeting, allowing you to send listing updates and market reports specifically to past sellers.
VaultRE
Contact Type (Tenant)
Mailchimp
Tag + Segment
1:1The Tenant role from VaultRE maps to a Mailchimp tag named 'Tenant' and a corresponding segment filter rule. Agencies running rental campaigns can use this tag to enroll past or prospective tenants in dedicated email sequences through Mailchimp Customer Journeys. The segment filter ensures only Tenant-tagged subscribers receive rental market updates and vacancy alerts.
VaultRE
Contact Type (Landlord)
Mailchimp
Tag + Segment
1:1The Landlord role maps to a Mailchimp tag named 'Landlord' and a segment filter rule for contacts where CONTACT_TYPE__c contains 'Landlord'. Landlord-tagged subscribers can be enrolled in property management email sequences, routine inspection reminders, or market-update campaigns without manual sorting, preserving the landlord segment your agency cultivated in VaultRE.
VaultRE
Custom Database Fields (Contact level)
Mailchimp
Merge Fields
1:1VaultRE custom database fields (date, checkbox, text, drop-down) at the contact level become Mailchimp merge fields. Date fields create DATE merge fields; checkbox creates a TEXT merge field with Yes/No values; drop-down selections create TEXT merge fields preserving the option labels. Mailchimp's audience field management requires pre-creation of merge fields before import.
VaultRE
Contact Email Address
Mailchimp
Subscriber EMAIL
1:1Email address is the unique identifier that joins VaultRE contacts to Mailchimp subscribers. All other fields map relative to this key. If duplicate emails exist across VaultRE contacts, Mailchimp's subscriber deduplication rule (by email) applies — the most recently updated VaultRE record wins.
VaultRE
Contact Name (First + Last)
Mailchimp
Merge Fields FNAME + LNAME
1:1VaultRE firstname and lastname fields map directly to Mailchimp's built-in FNAME and LNAME merge fields, which are standard on every Mailchimp audience. These fields are used in email personalisation tokens like *|FNAME|* and appear in subscriber profiles. The mapping preserves the name data your agency collected in VaultRE for personalised email communication.
VaultRE
Contact Phone
Mailchimp
Merge Field PHONE
1:1VaultRE phone number migrates to Mailchimp's PHONE merge field. If your Mailchimp audience does not have PHONE enabled, we add it before the import run. Phone data stored in Mailchimp supports SMS opt-in segmentation if you enable Mailchimp SMS features, allowing future SMS marketing to migrated contacts.
VaultRE
Property Association
Mailchimp
Custom Merge Field (e.g., LAST_PROPERTY_ID)
1:1VaultRE's many-to-many contact-to-property associations have no native Mailchimp equivalent since Mailchimp lacks a property object. We preserve the most recently associated property ID as a custom merge field (e.g., LAST_PROPERTY_ID__c) for reference and reconciliation purposes — it does not trigger Mailchimp automations or drive segmentation logic.
VaultRE
Staff/Owner Assignment
Mailchimp
Tag (Agent Tag)
1:1VaultRE owner_id (the agent responsible for the contact) maps to a Mailchimp tag naming the agent (e.g., tag 'Agent: Jane Smith'). This preserves the sphere-of-influence mapping so agencies know which agent's contact list each subscriber belonged to in VaultRE, supporting agent performance reporting and territory management in Mailchimp.
VaultRE
Source of Enquiry
Mailchimp
Tag + Merge Field
1:1VaultRE source_of_enquiry field (how the contact was originally acquired) migrates as both a tag (e.g., tag 'Source: Website') and a custom merge field SOURCE__c. The tag enables quick audience filtering, while the merge field supports Mailchimp campaign analysis by acquisition channel, allowing your team to measure which enquiry sources generate the most engaged subscribers.
| VaultRE | Mailchimp | Compatibility | |
|---|---|---|---|
| Contact | Subscriber1:1 | Fully supported | |
| Contact Type (Buyer) | Tag + Segment1:1 | Fully supported | |
| Contact Type (Seller) | Tag + Segment1:1 | Fully supported | |
| Contact Type (Tenant) | Tag + Segment1:1 | Fully supported | |
| Contact Type (Landlord) | Tag + Segment1:1 | Fully supported | |
| Custom Database Fields (Contact level) | Merge Fields1:1 | Fully supported | |
| Contact Email Address | Subscriber EMAIL1:1 | Fully supported | |
| Contact Name (First + Last) | Merge Fields FNAME + LNAME1:1 | Fully supported | |
| Contact Phone | Merge Field PHONE1:1 | Fully supported | |
| Property Association | Custom Merge Field (e.g., LAST_PROPERTY_ID)1:1 | Fully supported | |
| Staff/Owner Assignment | Tag (Agent Tag)1:1 | Fully supported | |
| Source of Enquiry | Tag + Merge Field1:1 | Fully supported |
Gotchas + challenges
Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.
VaultRE gotchas
VaultRE is listed as Out of Business
CSV export is the only documented migration path
Trust accounting varies by Australian state
Custom field type constraints may limit destination mapping
Mailchimp gotchas
Contact count includes unsubscribed and non-subscribed records
Automation workflows cannot be exported
Account suspensions trigger silently during migration
Template HTML is Mailchimp-specific and may not render in other platforms
E-commerce data requires active store connection
Pair-specific challenges
Migration approach
Audit VaultRE contacts and custom field groups
FlitStack connects to VaultRE via API using your integrator credentials and exports all contact records. We identify contacts with valid email addresses, those flagged do_not_email, and those with missing email. We also catalogue all VaultRE custom database field groups and their field types (date, checkbox, drop-down, text) so we can plan Mailchimp merge field creation. This audit produces a data quality report that includes the subscriber count estimate, unsubscribed contact count, and a list of custom fields requiring merge field creation in Mailchimp.
Create Mailchimp merge fields and audience structure
Before any contact data is imported, we create the Mailchimp merge fields required by the field mapping plan. This includes standard fields (PHONE if missing), custom fields for VaultRE contact_type (CONTACT_TYPE__c), enquiry source (SOURCE__c), original create date (ORIGINAL_CREATE_DATE__c), last modified (LAST_MODIFIED__c), VaultRE record ID (VAULTRE_ID__c), and any custom database field equivalents. For multi-office setups, we configure separate audiences. We deliver a Mailchimp setup checklist so your admin can pre-create the fields, or we create them via the Mailchimp Marketing API if granted editor access.
Run test-batch import with field-level diff
A representative slice of 100–500 VaultRE contacts — covering each contact_type combination, contacts with and without custom fields, and a mix of office assignments — is imported to Mailchimp. We generate a field-level diff comparing source VaultRE values against the imported Mailchimp subscriber records. This validates that drop-down value labels match, date fields land in the correct format, tag strings reflect VaultRE role values, and unsubscribed contacts import with the correct suppressed status. You review the diff before the full run is committed.
Full migration with delta-pickup window
The full VaultRE contact export imports to Mailchimp via the Mailchimp Marketing API. A delta-pickup window of 24–48 hours after the initial load captures any contacts created or updated in VaultRE during the cutover period — particularly relevant for agencies where the listing team continues adding enquiries while the migration runs. FlitStack logs every import operation with timestamps and record counts. One-click rollback reverts the Mailchimp audience to its pre-migration state if reconciliation against the VaultRE export count reveals discrepancies.
Deliver automation rebuild reference and sign-off
Alongside the migration data, FlitStack exports a VaultRE automation audit that lists every active trigger, its trigger event, and its actions in plain-language form. This document serves as the rebuild brief for your team to recreate VaultRE event-logic as Mailchimp Customer Journeys. The sign-off checklist confirms subscriber count, tag coverage, merge field population, and unsubscribed-contact handling before your team marks the migration complete and redirects sign-up forms from VaultRE to Mailchimp.
Platform deep dives
VaultRE
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. All 8 core objects map 1:1 between VaultRE and Mailchimp.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across VaultRE and Mailchimp.
Object compatibility
All 8 core objects map 1:1 between VaultRE and Mailchimp.
Field mapping clarity
Field mapping is derived from defaults — final spec confirmed during the sample migration.
Timeline complexity
8-object category — typical timelines run 2–7 days end-to-end.
API constraints
VaultRE: Not publicly documented in the public API docs.
Data volume sensitivity
VaultRE doesn't expose a bulk API — REST + parallelization used for high-volume runs.
Estimator
Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.
Step 1
Pick a category, then your source and destination platforms.
Category
FAQ
Answers to the questions buyers ask most during VaultRE to Mailchimp migration scoping. Not seeing yours? Book a call.
Walk through your VaultRE to Mailchimp migration with a real engineer — 30 minutes, free, written quote within 24 hours.
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