CRM migration
Field-level mapping, validation, and rollback between DGL Practice Manager and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
DGL Practice Manager
Source
Mailchimp
Destination
Compatibility
12 of 12
objects map 1:1 between DGL Practice Manager and Mailchimp.
Complexity
BStandard
Timeline
48–72 hours
Overview
DGL Practice Manager stores a clinical data model built around patients, appointments, clinical notes, insurer billing, and workflow automation for medical consultants. Mailchimp operates an audience model where contacts receive merge tags, tags, and segmentation for campaign targeting. The migration scope is deliberately narrow: only contact records that carry email addresses are exported from DGL, transformed into Mailchimp audience members, and their patient properties are mapped to Mailchimp merge fields. Clinical notes, appointment history, insurer details, and billing records have no place in Mailchimp and are excluded to comply with UK GDPR and healthcare data governance rules. FlitStack AI runs a scoped API extraction from DGL's export endpoint, applies a data‑cleaning step to remove any residual clinical identifiers, and loads the cleaned contact set into Mailchimp using the audience import format with pre‑configured merge tag definitions. After the initial load, a delta‑pickup window of 24–48 hours captures any new or updated email addresses entered in DGL during cutover, ensuring the Mailchimp audience reflects the latest contact state at go‑live. A verification report compares source field counts against imported member counts, and a rollback option is available if reconciliation fails.
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 DGL Practice Manager 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.
DGL Practice Manager
Patient
Mailchimp
Audience Member
1:1DGL patient records that contain a valid email address are mapped directly to Mailchimp audience members, using the email as the unique identifier for each member. Patients without an email address cannot be added to Mailchimp and are flagged in a separate report for your team to pursue email collection or manual entry before a future re‑migration.
DGL Practice Manager
Patient Name (First + Last)
Mailchimp
Merge Tags (FNAME, LNAME)
1:1DGL stores patient first and last name as separate fields. These map to Mailchimp's standard *|FNAME|* and *|LNAME|* merge tags, which FlitStack AI creates automatically when the audience is first configured. If a patient record lacks a first or last name, the corresponding merge field will be left blank, and you can manually populate it in Mailchimp after import.
DGL Practice Manager
Patient Email Address
Mailchimp
Audience Member Email Address
1:1The email address field from DGL patient records maps directly to the Mailchimp audience member email address, serving as the unique identifier for each contact. FlitStack AI validates each email for proper format and checks for duplicates within the DGL export before importing. Since Mailchimp requires a valid email for every audience member, any patient record missing an email address is excluded and listed in a separate report for follow‑up.
DGL Practice Manager
Patient Phone / Mobile
Mailchimp
Merge Tag (PHONE)
1:1DGL patient phone numbers map to a custom Phone merge tag in Mailchimp. FlitStack AI creates this as a text‑type merge tag during audience setup. If a patient record contains both a primary phone and a mobile number, FlitStack AI concatenates them into the single Phone field using a consistent format. Any missing phone value results in a blank field that can be edited directly in Mailchimp after import.
DGL Practice Manager
Patient Address Fields
Mailchimp
Mailchimp Address Merge Tags (ADDRESS, CITY, STATE, ZIP, COUNTRY)
1:1DGL patient address components (address line 1, address line 2, city, postcode, country) map to Mailchimp's structured address merge fields. FlitStack AI splits DGL's single address record into the five required Mailchimp subfields — ADDRESS, CITY, STATE (or region), ZIP, and COUNTRY. When any subfield is missing in DGL (for example, no state or province), FlitStack leaves the corresponding Mailchimp subfield blank and flags it for manual completion in the audience.
DGL Practice Manager
Practice / Clinic Name
Mailchimp
Merge Tag (PRACTICE)
1:1DGL records the clinic or consultant practice that a patient is associated with, stored as a practice identifier on the patient record. FlitStack AI maps this identifier to a custom PRACTICE merge tag in Mailchimp, allowing you to segment your audience by referring practice or service line. If a patient has no assigned practice in DGL, the PRACTICE tag will be left blank and can be populated manually after import.
DGL Practice Manager
Referring Clinician
Mailchimp
Merge Tag (REFERRINGDR)
1:1DGL records the referring clinician for each patient, typically stored as a clinician name or identifier on the patient record. FlitStack AI maps this field to a custom REFERRINGDR merge tag in Mailchimp, enabling you to segment contacts by referring doctor for tailored email communications. If a patient has no referring clinician listed in DGL, the REFERRINGDR tag will remain blank and can be added manually in Mailchimp after migration.
DGL Practice Manager
Appointment Reminder Preferences
Mailchimp
Mailchimp Tags / Segment Criteria
1:1DGL appointment reminder settings—such as reminder lead time, preferred channel (email or SMS), and escalation rules—have no direct Mailchimp equivalent. FlitStack AI exports these preferences as a tagged note attached to each contact in Mailchimp. Your Mailchimp admin can then use that note to rebuild reminder automations in Mailchimp’s automation builder, configuring time‑based triggers and conditional splits based on the exported preferences.
DGL Practice Manager
Clinical Notes / Patient Records
Mailchimp
Not Migrated
1:1DGL clinical notes, diagnosis records, consultation history, and clinical attachments contain protected health information. These do not migrate to Mailchimp under any circumstances — healthcare data must not be stored in marketing platforms due to GDPR and healthcare data governance requirements.
DGL Practice Manager
Invoices and Billing Records
Mailchimp
Not Migrated
1:1Invoices and billing records contain financial, insurer, and payment details that are considered sensitive under UK GDPR and healthcare data rules. Mailchimp does not provide an invoice or billing object, so there is no target for this data in the platform. Consequently, all invoice and billing records are excluded from the migration scope and remain stored only in DGL or your financial system for compliance and audit purposes.
DGL Practice Manager
DGL Workflows and Automation Rules
Mailchimp
Mailchimp Automations (manual rebuild required)
1:1DGL workflow management handles internal practice processes such as appointment follow‑up, document routing, insurer claim status checks, and internal task assignments. These processes have no direct Mailchimp equivalent, as Mailchimp’s automation builder is designed for email‑centric customer journeys rather than clinical task management. Therefore, each DGL workflow must be recreated in Mailchimp using the automation builder, or documented as a standard operating procedure for your Mailchimp admin to implement manually.
DGL Practice Manager
DGL GDPR Sentinel Audit Records
Mailchimp
Not Migrated
1:1DGL's GDPR Sentinel tracks consent, data access requests, and audit trails for patient data compliance, providing a full log of who accessed or modified patient information. Mailchimp manages its own consent tracking per subscriber, handling opt‑in and opt‑out status independently. Because DGL’s compliance audit records are required for UK healthcare retention regulations, they remain stored in DGL and are not transferred to Mailchimp, ensuring you meet statutory record‑keeping obligations.
| DGL Practice Manager | Mailchimp | Compatibility | |
|---|---|---|---|
| Patient | Audience Member1:1 | Fully supported | |
| Patient Name (First + Last) | Merge Tags (FNAME, LNAME)1:1 | Fully supported | |
| Patient Email Address | Audience Member Email Address1:1 | Fully supported | |
| Patient Phone / Mobile | Merge Tag (PHONE)1:1 | Fully supported | |
| Patient Address Fields | Mailchimp Address Merge Tags (ADDRESS, CITY, STATE, ZIP, COUNTRY)1:1 | Fully supported | |
| Practice / Clinic Name | Merge Tag (PRACTICE)1:1 | Fully supported | |
| Referring Clinician | Merge Tag (REFERRINGDR)1:1 | Fully supported | |
| Appointment Reminder Preferences | Mailchimp Tags / Segment Criteria1:1 | Fully supported | |
| Clinical Notes / Patient Records | Not Migrated1:1 | Fully supported | |
| Invoices and Billing Records | Not Migrated1:1 | Fully supported | |
| DGL Workflows and Automation Rules | Mailchimp Automations (manual rebuild required)1:1 | Fully supported | |
| DGL GDPR Sentinel Audit Records | Not Migrated1:1 | 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.
DGL Practice Manager gotchas
Per-invoice insurer submission charges inflate costs silently
Extortionate data extraction fee creates lock-in barrier
No public API means migration relies on DGL's goodwill
SQL infrastructure update in progress may alter the schema
Document generation depends on Microsoft Word on the local machine
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
Obtain DGL patient contact export and scope the data
FlitStack AI works with your DGL administrator to generate a contact-level export from DGL Practice Manager. The export query is reviewed to confirm it retrieves only non-clinical fields: names, email addresses, phone numbers, addresses, practice associations, and consent flags. Clinical notes, diagnosis fields, insurer references, billing records, and workflow rules are explicitly excluded before any data leaves DGL. FlitStack AI also cross‑checks the field list against a PHI‑sensitive field catalogue to catch any inadvertently included clinical columns, and documents the approved field set for sign‑off before extraction begins.
Configure Mailchimp audience with merge tags
Before importing data, FlitStack AI creates the Mailchimp audience and defines all required merge tags: PHONE, BIRTHDAY, PRACTICE, REFERRINGDR, DGL_PATIENT_ID, INSURER, DGL_CREATED_DATE, LAST_APPT, and APPT_REMINDER. Merge tags are created with the correct field types (text, date, number) matching the DGL data format. The Mailchimp subscription status settings are configured to match DGL's consent model. FlitStack AI also sets the default Mailchimp audience timezone to the practice's local region and enables double‑opt‑in for contacts with ambiguous consent flags to align with GDPR requirements.
Transform and import contact records into Mailchimp
DGL patient records are transformed into Mailchimp audience member format: email address becomes the primary key, names map to FNAME and LNAME, addresses are split into Mailchimp's structured address fields, dates are formatted for Mailchimp's BIRTHDAY merge field, and custom properties are written to their corresponding merge tags. Records missing email addresses are excluded and reported separately. During transformation, FlitStack AI normalises phone numbers to a consistent format, trims whitespace, and validates email syntax before writing to the Mailchimp API, ensuring a high‑quality import.
Run sample migration and field-level verification
A representative sample of 50–200 DGL patient records migrates to Mailchimp first. FlitStack AI generates a field-level diff comparing source DGL values against the imported Mailchimp member records. Your team verifies merge tag values, address formatting, consent status mapping, and the presence of the DGL_PATIENT_ID traceability field. Approval of the sample unlocks the full migration run. If any discrepancies appear, FlitStack AI logs them in a remediation sheet and adjusts the transformation logic before the full run, reducing the risk of bulk errors.
Execute full migration with delta-pickup window
Execute full migration with delta-pickup window. The full DGL contact dataset migrates to the Mailchimp audience. A delta-pickup window of 24–48 hours captures any new patient records or email address changes entered in DGL during the cutover period. After the window closes, a final audit report confirms record counts, excluded records (no email), and any transformation notes. One-click rollback is available if the migration fails reconciliation.
Platform deep dives
DGL Practice Manager
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 1 of 8 objects need a manual workaround.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across DGL Practice Manager and Mailchimp.
Object compatibility
1 of 8 objects need a manual workaround.
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
DGL Practice Manager: Not publicly documented.
Data volume sensitivity
DGL Practice Manager 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
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