CRM migration
Field-level mapping, validation, and rollback between Aderant Expert and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
Aderant Expert
Source
Twenty CRM
Destination
Compatibility
10 of 12
objects map 1:1 between Aderant Expert and Twenty CRM.
Complexity
BStandard
Timeline
3–5 days
Overview
Aderant Expert stores matters, clients, billers, timekeepers, and billing data in a denormalized SQL Server schema designed for legal practice management. Twenty CRM uses a normalized PostgreSQL-backed model with People (contacts), Companies, and Opportunities as its primary objects plus custom objects for anything legal-specific. FlitStack AI connects to Aderant Expert's SQL Server with read-only credentials and extracts matter records, client records, attorney and biller assignments, time entries, and cost records — preserving original create dates, responsible attorney, and billable-hour totals. We map each Aderant matter to a Twenty Opportunity, each Aderant client to a Twenty Person or Company, and each timekeeper to a Twenty Workspace Member. Legal-specific fields (billing rate, practice area, trust account balance) become Twenty custom fields on the relevant object. We do NOT migrate workflows, conflict-check configuration, trust-account rules, or billing guidelines — those are destination-side schema configuration that must be rebuilt in Twenty. The migration runs against Twenty's CSV import (via Command Menu → Import records) respecting the required sequence: Companies first, then People, then Opportunities, then custom objects last.
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 Aderant Expert object lands in Twenty CRM, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
Aderant Expert
Matter
Twenty CRM
Opportunity
1:1Each Aderant matter maps to one Twenty Opportunity. Matter Name becomes Opportunity Name, Matter Open Date becomes a custom field Original_Matter_Open_Date__c, and Matter Status maps to Opportunity Stage via value mapping (Open/Active → Open, Closed Won → Won, Closed Lost → Lost). The attorney assigned to the matter resolves to Twenty's Opportunity Owner by email match against Workspace Members.
Aderant Expert
Matter Client
Twenty CRM
Person + Company
1:1Aderant stores the client name as a field within the Matter record. We split this into a Twenty Person (the individual contact at the firm) and a Twenty Company (the client organization). If the Aderant client is an individual, it maps directly to a Person. If it is a company, it maps to a Company record with the contact person linked via the companyId field.
Aderant Expert
Attorney / Timekeeper
Twenty CRM
WorkspaceMember
1:1Aderant attorneys and timekeepers map to Twenty Workspace Members. Each attorney record is matched by email address to an invited Twenty user. The attorney's name populates the WorkspaceMember display name. If an attorney has no email in Aderant, a placeholder email is generated and flagged for admin review before migration runs.
Aderant Expert
Bill Rate / Billing Rate
Twenty CRM
Opportunity (custom field)
1:1Aderant's bill rate (hourly rate for the matter's responsible attorney) has no native equivalent in Twenty. We create a custom number field Billing_Rate__c on the Opportunity object and populate it from Aderant's bill rate field. This preserves rate information for reporting but requires the custom field to be created in Settings → Data Model before import.
Aderant Expert
Time Entry
Twenty CRM
Task + Opportunity (custom field)
many:1Aderant time entries (date, hours, activity description, billable flag) merge into Twenty. Billable hours sum to a custom number field Total_Billable_Hours__c on the related Opportunity. Individual time entry descriptions populate Task records linked to the Opportunity. Timekeeper attribution is preserved by setting the Task assignee to the matching Workspace Member.
Aderant Expert
Cost Entry
Twenty CRM
Opportunity (custom field)
many:1Aderant cost records (cost type, amount, description) do not have a native Twenty equivalent. We create a custom text field Cost_Summary__c on the Opportunity that concatenates all cost entries for that matter: cost type, amount, and date formatted as a structured string. Each cost type is also available as a separate custom number field if the firm's cost reporting requires granular analysis.
Aderant Expert
Practice Area
Twenty CRM
Opportunity (custom field)
1:1Aderant practice areas (Litigation, Corporate, Real Estate, etc.) have no native equivalent in Twenty's Opportunity model. We create a custom select field Practice_Area__c on Opportunity with pick-list values matching the Aderant practice area values. The value list is reviewed with the firm before migration so deprecated values can be archived rather than imported.
Aderant Expert
Invoice / Payment Record
Twenty CRM
Opportunity (custom fields)
1:1Aderant invoice and payment history (amount, status, date, client reference) does not map cleanly to Twenty's CRM data model. We preserve invoice total as a custom currency field on the Opportunity and payment status as a custom select field. The full invoice and payment line-item detail is exported to a CSV file and stored as a reference attachment — rebuilding this as a custom object in Twenty is available at the firm's option.
Aderant Expert
Matter Note / Document
Twenty CRM
Note
1:1Aderant matter notes and document references migrate as Twenty Note records attached to the related Opportunity. The Note body carries the original text. Document file names are preserved but file attachments require re-upload to Twenty's storage or a linked external location — the original files are not migrated automatically.
Aderant Expert
Conflict Check Record
Twenty CRM
Custom Object
1:1Aderant conflict check history (searched parties, date, result, reviewing attorney) has no native equivalent in Twenty's data model. We offer a custom object Conflict_Check__c in Twenty with fields for searched party, check date, result, and reviewing attorney. The firm decides whether to import full conflict history or surface it as a linked PDF reference.
Aderant Expert
Trust Account Record
Twenty CRM
Custom Object
1:1Aderant trust account balances and transaction records are legal-specific accounting data that Twenty's CRM model does not support natively. We map trust balance as a custom number field on the Opportunity. Full transaction history is exported as a CSV file and can be imported as a custom object Trust_Transaction__c if the firm chooses to recreate the accounting detail in Twenty.
Aderant Expert
Originating Attorney
Twenty CRM
Opportunity (custom field)
1:1Aderant's Originating Attorney field (the partner who opened the matter) is distinct from the Responsible Attorney. Since Twenty's Opportunity has a single Owner field, we create Originating_Attorney__c as a custom field on Opportunity and populate it from Aderant's originating attorney value, resolved by email match to Workspace Members.
| Aderant Expert | Twenty CRM | Compatibility | |
|---|---|---|---|
| Matter | Opportunity1:1 | Fully supported | |
| Matter Client | Person + Company1:1 | Fully supported | |
| Attorney / Timekeeper | WorkspaceMember1:1 | Fully supported | |
| Bill Rate / Billing Rate | Opportunity (custom field)1:1 | Fully supported | |
| Time Entry | Task + Opportunity (custom field)many:1 | Fully supported | |
| Cost Entry | Opportunity (custom field)many:1 | Fully supported | |
| Practice Area | Opportunity (custom field)1:1 | Fully supported | |
| Invoice / Payment Record | Opportunity (custom fields)1:1 | Fully supported | |
| Matter Note / Document | Note1:1 | Fully supported | |
| Conflict Check Record | Custom Object1:1 | Fully supported | |
| Trust Account Record | Custom Object1:1 | Fully supported | |
| Originating Attorney | Opportunity (custom field)1:1 | 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.
Aderant Expert gotchas
Direct SQL Server database access required for migration
Accruing time entries require post-cutover delta pass
Trust account balances are point-in-time sensitive
Document binary migration is not supported
Custom fields vary per firm configuration
Twenty CRM gotchas
Import order is enforced and critical
Export limited to 20,000 records and visible columns only
Soft-deleted records count toward uniqueness and trigger restores
API rate limits cap at 200 req/min on Organization tier
No native email sequences — follow-up cadences require external tools
Pair-specific challenges
Migration approach
Audit Aderant SQL Server schema and design the migration extraction query
FlitStack AI connects to Aderant Expert's SQL Server database using read-only admin credentials. We inventory the Matter table columns, identify which tables hold time entries and cost records, locate the attorney and biller lookup tables, and catalog every custom field defined in the Aderant schema. The output is a SQL extraction query scoped to active and recently closed matters — we exclude test records, duplicate entries, and records older than a configurable cutoff date. The query is reviewed with the firm's Aderant administrator before execution.
Map Aderant fields to Twenty objects and create the pre-import field checklist
Each Aderant matter field is mapped to either a Twenty standard field or a custom field. We identify which Aderant fields require custom field creation in Twenty (Billing_Rate__c, Practice_Area__c, Originating_Attorney__c, and trust-account fields) and deliver a numbered checklist of fields to create in Settings → Data Model before import. We also identify attorney and biller records that must resolve to Workspace Members and cross-reference them against the Twenty workspace member list.
Resolve attorney and biller assignments to Twenty Workspace Members
Aderant attorneys and billers are matched to Twenty Workspace Members by email address. We run the email resolution before generating the migration CSV files. Any attorney with no corresponding Workspace Member invitation is flagged with a recommendation: invite them to Twenty first, or assign a fallback owner. This step prevents orphaned Opportunity records from landing without an owner during import.
Run a sample migration with field-level validation on a 50–100 record slice
We extract a representative sample of 50–100 Aderant matters spanning different practice areas, responsible attorneys, and matter statuses. The sample is loaded into Twenty via CSV import following the correct sequence: Companies, then People, then Opportunities, then custom objects. We generate a field-level diff comparing source values in Aderant against the corresponding field values in Twenty. The firm reviews the diff to verify field mapping accuracy, custom field values, and owner resolution before the full migration is approved.
Execute full migration with delta-pickup window and one-click rollback available
The full Aderant dataset is migrated into Twenty following the validated sequence. A 24–48 hour delta-pickup window opens at the point of cutover: any new matters, time entries, or client records created or modified in Aderant during the window are captured and loaded in a second pass. FlitStack AI maintains a complete audit log of every record operation. If reconciliation identifies gaps, one-click rollback reverts the Twenty workspace to its pre-migration state so the migration can be re-run with corrected logic.
Deliver export-for-rebuild package and post-migration reconciliation report
We export Aderant workflow definitions, conflict-check configuration references, and trust-account structure documentation as a rebuild reference package for the Twenty admin. The reconciliation report lists every Aderant record migrated, any fields that required transformation, owner assignments made, and any records that could not be auto-assigned (flagged with a manual-assignment recommendation). Conflict-check and trust-account data exported as CSV is delivered alongside the report for the firm to import as custom objects in Twenty.
Platform deep dives
Aderant Expert
Source
Strengths
Weaknesses
Twenty CRM
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 1 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 Aderant Expert and Twenty CRM.
Object compatibility
1 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
Aderant Expert: Not applicable — no public API.
Data volume sensitivity
Aderant Expert 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.
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FAQ
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