CRM migration
Field-level mapping, validation, and rollback between Property Shell and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
Property Shell
Source
Mailchimp
Destination
Compatibility
10 of 10
objects map 1:1 between Property Shell and Mailchimp.
Complexity
BStandard
Timeline
24–48 hours
Overview
Property Shell is a property-development CRM that stores contacts, leads, purchasers, property listings, and deal stages in a unified object model. Mailchimp is an email marketing platform that holds contacts as subscribers within audiences, using merge tags for custom fields and tags/segments for behavioural classification. The migration carries every contact record from Property Shell — including lead status, purchaser type, enquiry source, and custom property fields — into Mailchimp audiences as subscriber profiles with merge tag values. The principal translation challenge is converting Property Shell's structured CRM fields (deal stage, purchase intent, settlement date) into Mailchimp's flat merge-tag and tag model. Workflows, automations, marketing nurture journeys, and settlement-task logic do not migrate — they must be rebuilt in Mailchimp's automation builder using exported definitions as a reference. FlitStack AI extracts via Property Shell's API or CSV export, transforms field types to match Mailchimp merge tag constraints (255-character text limit), and loads into your Mailchimp audience with owner resolution by email match.
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 Property Shell 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.
Property Shell
Contact (Lead)
Mailchimp
Mailchimp Subscriber
1:1Property Shell contact records with lead status migrate as Mailchimp subscribers within your primary audience. The contact's email address becomes the subscriber identifier and primary key for matching records during import. Lead source, enquiry date, and assigned agent fields map to dedicated merge tags on the subscriber record, preserving the origin and ownership context of each lead.
Property Shell
Contact (Purchaser/Sale)
Mailchimp
Mailchimp Subscriber
1:1Purchaser records in Property Shell — representing buyers who have signed contracts or reached settlement — map directly to Mailchimp subscribers with a purchaser-type merge tag value applied. Settlement date and purchase price (where stored) migrate as date and number merge tags respectively, enabling purchase-value segmentation and anniversary campaign triggers in Mailchimp.
Property Shell
Company / Developer
Mailchimp
Mailchimp Merge Tag
1:1Property Shell's developer and company records have no direct Mailchimp equivalent, requiring flattening into subscriber merge tags. Company name, ABN/ACN, and address fields flatten into text merge tags on the contact record. Standard merge tags (FNAME, LNAME, COMPANY, PHONE) cover common fields; additional company-specific fields become custom merge tags to preserve developer attribution.
Property Shell
Project / Property Listing
Mailchimp
Mailchimp Merge Tag + Tag
1:1Property Shell project and listing data linked to a contact — such as 'Unit 403 at Parkview Estate' — becomes a custom text merge tag (PROPERTY_NAME__c) and a corresponding Mailchimp tag using the project name. Contacts linked to multiple projects generate multiple tag entries on the single subscriber record, enabling segment filtering by specific development interest.
Property Shell
Deal / Pipeline Stage
Mailchimp
Mailchimp Tag + Segment
1:1Property Shell deal stages (Lead, Enquiry, Contract, Settlement) have no native Mailchimp equivalent and must be modelled via tags and segments. Each deal stage maps to a corresponding Mailchimp tag applied to the subscriber, and audience segments are created for each stage value to enable pipeline-position targeting. Stage transition timestamps migrate as custom date merge tags for tracking.
Property Shell
Lead Status (Active / Closed / Lost)
Mailchimp
Mailchimp Subscriber Status
1:1Property Shell lead status values map directly to Mailchimp subscriber statuses using a defined value mapping: Active leads become 'subscribed', closed-lost leads become 'unsubscribed', and archived records become 'cleaned'. This prevents inadvertent re-engagement campaigns targeting leads who have formally opted out in Property Shell.
Property Shell
Enquiry Source
Mailchimp
Mailchimp Merge Tag + Tag
1:1The enquiry source field (e.g., 'Website', 'Referral', 'Realestate.com.au') migrates as both a text merge tag (ENQUIRY_SOURCE) and a Mailchimp tag applied to the subscriber. Tags enable segment-based campaigns targeting contacts grouped by their original acquisition channel, supporting channel attribution and ROI analysis.
Property Shell
Assigned Agent / Owner
Mailchimp
Mailchimp Merge Tag
1:1Property Shell owner and agent assignments map to text merge tags on the subscriber record. The AGENT_NAME merge tag stores the assigned agent's name, while AGENT_EMAIL stores the agent's email address for internal routing reference. These remain flat tag values — they do not create linked user records or agent dashboards within Mailchimp.
Property Shell
Attachment / Document
Mailchimp
No Equivalent
1:1Property Shell attachments including contracts, floor plans, and settlement documents stored against contacts have no Mailchimp storage equivalent. Documents must be re-hosted externally on a file hosting service and linked via URL merge tags. We generate a full attachment inventory per contact as a reference export for manual follow-up and document retrieval.
Property Shell
Workflow / Automation
Mailchimp
No Equivalent
1:1Property Shell marketing automation workflows — including enquiry nurture sequences, settlement reminder flows, and lead routing rules — do not transfer to Mailchimp's automation system. FlitStack AI exports all workflow definitions as JSON and PDF reference documents so your team can rebuild equivalent automations within Mailchimp's automation builder using the exported definitions as a functional specification.
| Property Shell | Mailchimp | Compatibility | |
|---|---|---|---|
| Contact (Lead) | Mailchimp Subscriber1:1 | Fully supported | |
| Contact (Purchaser/Sale) | Mailchimp Subscriber1:1 | Fully supported | |
| Company / Developer | Mailchimp Merge Tag1:1 | Fully supported | |
| Project / Property Listing | Mailchimp Merge Tag + Tag1:1 | Fully supported | |
| Deal / Pipeline Stage | Mailchimp Tag + Segment1:1 | Fully supported | |
| Lead Status (Active / Closed / Lost) | Mailchimp Subscriber Status1:1 | Fully supported | |
| Enquiry Source | Mailchimp Merge Tag + Tag1:1 | Fully supported | |
| Assigned Agent / Owner | Mailchimp Merge Tag1:1 | Fully supported | |
| Attachment / Document | No Equivalent1:1 | Fully supported | |
| Workflow / Automation | No Equivalent1:1 | 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.
Property Shell gotchas
No documented public API for data export
Highly customised per-customer schema requires pre-migration field audit
Interactive Maps are visualisation-layer only and cannot be migrated
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 Property Shell data model and export contacts via API or CSV
FlitStack AI connects to Property Shell via API (or CSV export for setups without API access) to pull all contact records, company records, project associations, and deal stage data. We inventory every field present in the CRM, flag custom fields, and identify records with attachments or multi-project links. This audit produces a field catalogue used to plan merge tag creation in Mailchimp and identify fields that will require truncation or custom handling before import.
Configure Mailchimp audience with merge tags matching Property Shell fields
Before any data moves, FlitStack AI creates the required merge tags in your Mailchimp audience — mapping Property Shell field names to Mailchimp merge tag names and types. Standard fields (FNAME, LNAME, EMAIL, PHONE, ADDRESS) are mapped directly. Custom fields (lifecycle stage, deal stage, settlement date, enquiry source, purchase type) are created as custom merge tags with the correct type (text, number, date, phone). Fields exceeding Mailchimp's 255-character limit are flagged for truncation or split-logic. This step runs against a staging audience first to validate tag configuration before the production import.
Resolve owner and agent email addresses for tag attribution
Property Shell contact records include assigned agent and owner fields. Mailchimp does not have a user/owner model — instead, agent assignments are stored as text merge tags on each subscriber. FlitStack AI resolves agent email addresses from Property Shell's owner records and populates the AGENT_NAME and AGENT_EMAIL merge tags on each contact. Where an agent email cannot be matched (e.g., the agent no longer exists in the system), the tag is populated with the raw name string and a fallback agent tag is applied.
Run sample migration with field-level diff and tag validation
A representative slice of 100–500 records migrates into the Mailchimp staging audience first. FlitStack AI generates a field-level diff comparing source Property Shell values against the Mailchimp subscriber profile, checking merge tag population, truncation on long fields, tag assignment per project link, and subscriber status mapping. You review the diff before the full run commits. Tag-count logic for multi-project contacts is validated at this stage so segment configurations can be confirmed.
Execute full migration with delta-pickup and disable Property Shell sync
The full contact dataset migrates into the production Mailchimp audience with all merge tags and tags populated. A delta-pickup window (24–48 hours) captures any Property Shell records modified during the cutover window. Immediately after the full migration commits, FlitStack AI disables or flags the Property Shell Mailchimp integration trigger to prevent post-migration re-sync duplicates. An audit log records every imported subscriber ID, source record ID, and import timestamp. A one-click rollback is available if reconciliation against the Property Shell export count reveals discrepancies.
Platform deep dives
Property Shell
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 2 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Property Shell and Mailchimp.
Object compatibility
2 of 8 objects need a mapping; the rest are 1:1.
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
Property Shell: Not publicly documented.
Data volume sensitivity
Property Shell 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 Property Shell to Mailchimp migration scoping. Not seeing yours? Book a call.
Walk through your Property Shell to Mailchimp migration with a real engineer — 30 minutes, free, written quote within 24 hours.
Book a free 30 minute consultationAdjacent paths
Other ways to leave Property Shell
Other ways to arrive at Mailchimp
Ready when you are
Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.