CRM migration
Field-level mapping, validation, and rollback between Aderant Expert Sierra and Freshsales. We move data and schema; workflows are rebuilt natively in Freshsales.
Aderant Expert Sierra
Source
Freshsales
Destination
Compatibility
11 of 12
objects map 1:1 between Aderant Expert Sierra and Freshsales.
Complexity
BStandard
Timeline
48–72 hours
Overview
Aderant Expert Sierra is a legal practice management ERP designed for mid-to-large law firms — it houses clients, matters, time entries, billing records, and trust accounts in a tightly integrated financial system. Freshsales is a cloud CRM built for sales and pipeline management, with a data model centered on Leads, Contacts, Accounts, and Deals. These platforms serve entirely different audiences, and the migration is primarily driven by firms that want to separate their front-office CRM from their back-office legal billing — or firms leaving legal software altogether and adopting Freshsales as their primary client-management tool. FlitStack AI maps Aderant's Client and Matter records into Freshsales Accounts and Deals, preserving matter numbers and practice-area taxonomy as custom fields. Contact records migrate into Freshsales Contacts, with a routing split: contacts associated with active matters become Contacts, while unconverted or dormant client contacts route to Leads. Time entries and billing history present a structural challenge — Aderant stores these as financial line items that have no native equivalent in Freshsales; we export them as custom-field data or reference records and flag them for post-migration reconciliation. The migration runs against Freshsales via its REST API, using scoped read access on Aderant so your team continues working during the cutover window. Workflows, trust accounting logic, and billing automation do not migrate — they must be rebuilt or retained in Aderant for financial compliance.
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 Sierra object lands in Freshsales, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
Aderant Expert Sierra
Client
Freshsales
Account
1:1Aderant Client records map directly to Freshsales Accounts. The client name becomes the Account Name, and the primary billing address maps to the Account's address fields. Client status (active/inactive) is preserved as a custom pick-list field on the Freshsales Account so inactive clients can be flagged without being deleted.
Aderant Expert Sierra
Matter
Freshsales
Deal
1:1Aderant Matter records map to Freshsales Deals. The matter number maps to a custom field (Matter_Number__c) on the Deal, and the matter description maps to the Deal's description field. Practice area maps to a custom pick-list field (Practice_Area__c) so deal records retain their legal domain classification in Freshsales.
Aderant Expert Sierra
Matter:Client association
Freshsales
Deal:Account association
1:1The one-to-many relationship between Aderant Client and Matter translates to Freshsales Deal linked to an Account by the account_id foreign key. Each matter lands as a separate Deal associated with its parent Client Account, preserving the firm-level view of client activity in the Account record.
Aderant Expert Sierra
Client Contact (active matter)
Freshsales
Contact
1:1Aderant contacts associated with active matters are imported as Freshsales Contacts and linked to their corresponding Account. The contact's role on the matter (Attorney, Paralegal, Client) maps to Freshsales Contact's job_title field and a custom Role_on_Matter__c field. Original create dates are preserved as a custom datetime field.
Aderant Expert Sierra
Client Contact (no active matter)
Freshsales
Lead
1:manyAderant client contacts that have no currently active matter split into Freshsales Leads rather than Contacts — this preserves them in the firm's prospect pipeline without conflating them with active client relationships. When a Lead converts later, Freshsales will create a Contact and Account from it.
Aderant Expert Sierra
Time Entry
Freshsales
Custom Object: Time_Entry__c
1:1Aderant time entries have no direct Freshsales equivalent — Deals do not support line-item billing records. We create a Time_Entry__c custom object in Freshsales (Estate or Forest plan required for custom objects) linked to the Deal by a lookup relationship, with fields for date, hours, rate, description, and billing status.
Aderant Expert Sierra
Bill / Invoice
Freshsales
Custom Object: Billing_Record__c
1:1Aderant bills and invoices are financial ledger records that do not map to any native Freshsales object. We create a Billing_Record__c custom object linked to the Account, storing invoice number, date, amount, status, and currency. The full financial ledger is preserved as an exported CSV kept alongside the Freshsales migration for audit purposes.
Aderant Expert Sierra
Document / File attachment
Freshsales
Freshsales File Attachments
1:1Aderant document and file attachments on matters are downloaded and re-uploaded to Freshsales as file attachments on the corresponding Deal or Contact record. File size limits apply — Freshsales enforces a maximum file size per upload, which we manage by chunking large document sets.
Aderant Expert Sierra
Custom Field (user-defined on Matter)
Freshsales
Custom Field on Deal
1:1Aderant user-defined fields on Matter records map to Freshsales custom fields on the Deal object. The field type is translated: text fields become Freshsales text fields, numeric fields become number fields, and pick-list fields become Freshsales dropdown fields. All custom fields require pre-creation in Freshsales before migration runs.
Aderant Expert Sierra
Trust / IOLTA Account
Freshsales
No equivalent
1:1Aderant trust and IOLTA accounting records have no Freshsales equivalent and cannot be represented in a CRM. We export these records as a separate CSV financial file and flag them for retention in Aderant or a dedicated accounting system. This is a critical disclosure: Freshsales is not a financial or legal billing system and should not be used to store trust account data.
Aderant Expert Sierra
Rates / Billing Tier
Freshsales
Custom Field on Account
1:1Aderant rate tables and billing tiers attached to clients are stored as custom pick-list fields on the Freshsales Account (Billing_Tier__c, Default_Rate__c). Individual matter rates can be stored on the Deal custom fields. These are reference data for the firm's pricing model — they do not drive billing in Freshsales.
Aderant Expert Sierra
Workflow / Automation rules
Freshsales
Not migrated
1:1Aderant workflow rules governing matter intake, conflict checks, and billing automation have no equivalent in Freshsales. These are explicitly excluded from migration and must be documented separately. We provide a workflow audit export from Aderant so your team can reference it when rebuilding automation rules in Freshsales.
| Aderant Expert Sierra | Freshsales | Compatibility | |
|---|---|---|---|
| Client | Account1:1 | Fully supported | |
| Matter | Deal1:1 | Fully supported | |
| Matter:Client association | Deal:Account association1:1 | Fully supported | |
| Client Contact (active matter) | Contact1:1 | Fully supported | |
| Client Contact (no active matter) | Lead1:many | Fully supported | |
| Time Entry | Custom Object: Time_Entry__c1:1 | Fully supported | |
| Bill / Invoice | Custom Object: Billing_Record__c1:1 | Fully supported | |
| Document / File attachment | Freshsales File Attachments1:1 | Fully supported | |
| Custom Field (user-defined on Matter) | Custom Field on Deal1:1 | Fully supported | |
| Trust / IOLTA Account | No equivalent1:1 | Fully supported | |
| Rates / Billing Tier | Custom Field on Account1:1 | Fully supported | |
| Workflow / Automation rules | 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.
Aderant Expert Sierra gotchas
API rate limits are not publicly documented
Expert Sierra is cloud-only with no on-premises path
Custom field migration requires pre-migration field mapping
Implementation complexity drives long project timelines
Freshsales gotchas
Freddy AI is Pro-tier only despite heavy marketing
Post-migration emails and sequences are disabled
Bot session credits are a one-time 500-session allocation
Phone credits charged per minute with no cap
File storage limits scale with plan tier
Pair-specific challenges
Migration approach
Catalog Aderant data objects and define Freshsales custom field schema
FlitStack AI connects to your Aderant environment using scoped admin credentials and exports a full inventory of Client, Matter, Contact, Time Entry, and Bill records. We generate a data dictionary identifying every user-defined field in use on matter records. From this inventory we produce a Freshsales setup plan: a list of custom fields to create, their types, and which Freshsales plan (Estate or Forest) is required to unlock the field count. Your Freshsales admin creates these fields before migration runs — this is the critical path step for timeline.
Export Aderant records and run field-level mapping validation
We export all Aderant records into a staging format and apply the field mapping defined in the plan. Before any data touches Freshsales, we run a mapping audit that flags value mismatches (e.g., currency normalization, status value translation, multi-currency normalization), contact-to-matter routing decisions (Contact vs. Lead), and any records that lack a required Freshsales foreign key (e.g., a Deal with no Account). The audit produces a correction report your team reviews before we proceed.
Run a sample migration with reconciliation diff
A representative sample — typically 200–500 records spanning clients, matters, contacts, and time entries — is migrated into Freshsales first. We generate a field-level diff comparing source values against destination values for every mapped field, so you can verify that matter numbers, practice areas, contact associations, and billing amounts landed correctly. Any mapping errors are corrected before the full migration run commits. Sample migration also validates that custom object (Time_Entry__c, Billing_Record__c) lookups resolve correctly.
Execute full migration with delta-pickup window
The full migration writes all validated records to Freshsales via the REST API, respecting Freshsales rate limits per your plan tier. After the initial load completes, a 24–48 hour delta-pickup window captures any records created or modified in Aderant during the cutover period. A final audit log records every record written, any failures, and the de-duplication decisions made. Trust account records and workflow definitions are exported as separate CSV and JSON files for your team's reference.
Post-migration reconciliation and documentation handoff
FlitStack AI delivers a reconciliation report comparing Aderant record counts against Freshsales record counts by object type. Any records that failed to migrate are listed with failure reasons. We also deliver the exported trust financial ledger and workflow audit file as separate deliverables. Freshsales workflows, billing automation, and matter intake rules must be rebuilt separately — we provide a workflow reference document exported from Aderant to guide that rebuild. One-click rollback is available within 72 hours of go-live if reconciliation uncovers systemic issues.
Platform deep dives
Aderant Expert Sierra
Source
Strengths
Weaknesses
Freshsales
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 3 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 Sierra and Freshsales.
Object compatibility
3 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 Sierra: Not publicly documented — Aderant enforces limits per API at its discretion and requires separate consent to exceed them.
Data volume sensitivity
Aderant Expert Sierra 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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