CRM migration
Field-level mapping, validation, and rollback between TeamSystem CRM and Microsoft Dynamics 365 Sales . We move data and schema; workflows are rebuilt natively in Microsoft Dynamics 365 Sales .
TeamSystem CRM
Source
Microsoft Dynamics 365 Sales
Destination
Compatibility
8 of 10
objects map 1:1 between TeamSystem CRM and Microsoft Dynamics 365 Sales .
Complexity
BStandard
Timeline
5-8 weeks
Overview
Moving from TeamSystem CRM to Microsoft Microsoft Dynamics 365 Sales requires first disentangling years of sales data from a platform where CRM records sit alongside accounting, payroll, and operational data in a unified schema. We identify which database tables correspond to the sales layer, extract Contacts, Companies, Opportunities, and Activities without including financial records, then load them into Microsoft Dynamics 365 Sales via the Dataverse API with owner lookups resolved against the destination User table. Custom fields, pipeline stage configurations, and activity type taxonomies require explicit field-to-field mapping since the two platforms use different schemas. Workflow rules and automation configurations in TeamSystem are not exportable as discrete data; we deliver a written inventory for the customer's admin to rebuild in Microsoft Dynamics 365 Sales using Power Automate or Dynamics workflows. Email integration data and attachments migrate by reference URL where available, subject to storage and expiry rules confirmed during scoping.
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.
Source platform
TeamSystem CRM platform overview
Scorecard, SWOT, gotchas, and pricing for TeamSystem CRM.
Destination platform
Microsoft Dynamics 365 Sales platform overview
Scorecard, SWOT, gotchas, and pricing for Microsoft Dynamics 365 Sales .
Data migration guide
The complete Microsoft Dynamics 365 Sales migration guide
Data model, import mechanisms, field mapping strategy, pitfalls, and cutover — by the engineers running it.
Destination checklist
Microsoft Dynamics 365 Sales migration checklist
Pre- and post-cutover tasks for moving onto Microsoft Dynamics 365 Sales .
Why teams make this switch
Leaving
What's pushing teams away
Choosing
What's pulling them in
Object mapping
Each row shows how a TeamSystem CRM object lands in Microsoft Dynamics 365 Sales , including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
TeamSystem CRM
Contact
Microsoft Dynamics 365 Sales
Contact
1:1TeamSystem Contact records map to Microsoft Dynamics 365 Sales Contact. We extract name, email, phone, address, ownership assignment, and any custom fields on the contact record. The email address serves as the primary dedupe key during import. Owner resolution maps TeamSystem owner IDs to Dynamics 365 User records by email match; any unresolved owner goes to a reconciliation queue for the customer's admin to provision before Contact insert proceeds.
TeamSystem CRM
Company
Microsoft Dynamics 365 Sales
Account
1:1TeamSystem Company records map to Microsoft Dynamics 365 Sales Account. The company name becomes Account Name; address fields map to the standard Address compound field in Dataverse. Where TeamSystem stores a domain or website on the Company record, we map that to the Account Website field. Account is created before Contact import so the parent AccountId lookup is satisfied at the moment of Contact insert.
TeamSystem CRM
Lead
Microsoft Dynamics 365 Sales
Lead
1:1TeamSystem Lead records with status, source, and scoring fields map to Dynamics 365 Lead. Lead status values from TeamSystem require explicit mapping to Dynamics 365 Lead Status picklist values since the stage taxonomy differs per organization. Any scoring field in TeamSystem migrates as a custom integer field on the Dynamics Lead for post-migration segmentation use.
TeamSystem CRM
Opportunity
Microsoft Dynamics 365 Sales
Opportunity
1:1TeamSystem Opportunity records (deals with value, stage, expected close date, and pipeline association) map to Microsoft Dynamics 365 Sales Opportunity. The pipeline stage name in TeamSystem maps to a Microsoft Dynamics 365 Sales Process stage value; we create the Sales Process and whitelisted stages during configuration before migration begins so the stage reference is valid at insert time. Deal amount maps to EstimatedRevenue.
TeamSystem CRM
Pipeline
Microsoft Dynamics 365 Sales
Sales Process + Record Type
lossyTeamSystem pipeline definitions (stage names, probabilities, and sequence) map to Dynamics 365 Record Types and Sales Processes. Each TeamSystem pipeline becomes a Record Type on Opportunity with a corresponding Sales Process that controls the stage dropdown values and their probabilities. We configure these in the destination Dynamics 365 org during the schema design phase before record migration.
TeamSystem CRM
Activity
Microsoft Dynamics 365 Sales
Task, EmailMessage, or custom Activity table
1:1TeamSystem Activity logs (calls, emails, meetings, tasks) require value mapping since the activity type taxonomy differs between platforms. We classify each TeamSystem activity by its type attribute, then map to the corresponding Dynamics 365 entity: calls to Task with TaskSubtype=Call, emails to EmailMessage linked to a Task, meetings to Event, and standalone tasks to Task. The original TeamSystem timestamp maps to ActivityDate to preserve the timeline ordering.
TeamSystem CRM
Custom Field
Microsoft Dynamics 365 Sales
Custom Field (on corresponding Dataverse entity)
lossyOrganization-specific fields on any standard object in TeamSystem require pre-discovery to identify the full field registry. We query the field schema during scoping to ensure all non-standard columns are included in the export package. Each custom field maps to a Dataverse custom column of equivalent type (text, integer, decimal, date, picklist) on the target entity, created during the schema design phase before record migration.
TeamSystem CRM
User and Ownership
Microsoft Dynamics 365 Sales
User
1:1TeamSystem User accounts with role assignments and record ownership do not map directly by ID to Dynamics 365 User records. We build a user mapping table during scoping that matches TeamSystem user email to the corresponding Dynamics 365 User. The customer's admin provisions any missing Dynamics 365 Users before migration. Owner resolution fails cleanly with a reconciliation report for any TeamSystem owner without a destination User match.
TeamSystem CRM
Email Integration Data
Microsoft Dynamics 365 Sales
EmailMessage + Task
1:1Email tracking and inbox association data from TeamSystem migrates as EmailMessage records linked to Tasks on the Contact or Opportunity timeline. We extract email content, timestamps, and sender-recipient relationships. Full email body migration is subject to the TeamSystem integration configuration; we flag any emails that cannot be extracted due to attachment expiry or storage limits during scoping.
TeamSystem CRM
Attachment
Microsoft Dynamics 365 Sales
Note or SharePoint (via Dynamics integration)
1:1Files linked to deals, contacts, or activities export by reference URL or download where accessible. Attachment migration is conditional on TeamSystem storage availability and any expiry rules set on the account. We flag any attachments that exceed storage limits or are inaccessible due to the customer's TeamSystem configuration during the discovery phase.
| TeamSystem CRM | Microsoft Dynamics 365 Sales | Compatibility | |
|---|---|---|---|
| Contact | Contact1:1 | Fully supported | |
| Company | Account1:1 | Fully supported | |
| Lead | Lead1:1 | Fully supported | |
| Opportunity | Opportunity1:1 | Fully supported | |
| Pipeline | Sales Process + Record Typelossy | Fully supported | |
| Activity | Task, EmailMessage, or custom Activity table1:1 | Fully supported | |
| Custom Field | Custom Field (on corresponding Dataverse entity)lossy | Fully supported | |
| User and Ownership | User1:1 | Fully supported | |
| Email Integration Data | EmailMessage + Task1:1 | Mapping required | |
| Attachment | Note or SharePoint (via Dynamics integration)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.
TeamSystem CRM gotchas
Custom pricing with no public tiers
ERP-CRM data entanglement complicates clean CRM exports
API is not publicly documented
Implementation typically requires IT involvement and paid setup
Microsoft Dynamics 365 Sales gotchas
Professional tier 15-table custom table limit blocks migrations
October 2024 pricing increase applies at renewal for all customers
Custom fields must be created in the UI before API writes
Power Platform request limits apply to bulk migrations
Activity records orphaned to inactive owners fail silently
Pair-specific challenges
Migration approach
Discovery and data separation mapping
We conduct a technical discovery call with the customer's IT team to identify which TeamSystem database tables correspond to the CRM layer versus the ERP-financial layer. We query the TeamSystem field registry to enumerate all standard and custom fields on Contacts, Companies, Opportunities, Leads, and Activities. We also identify the current owner assignments, pipeline configurations, and any email or attachment storage limits. The output is a written data separation map and migration scope that explicitly lists which tables and fields enter the export package.
API credential acquisition and extraction
We engage TeamSystem support or work with the customer's IT team to obtain API credentials and endpoint documentation for the CRM module. Where API access is restricted, we coordinate a database-level export with vendor support. We run a pilot extraction of 50-100 records per object to validate field coverage and confirm the data separation map is accurate before running the full export.
Schema design in Dynamics 365 Sandbox
We provision the destination Microsoft Dynamics 365 Sales environment in a Sandbox, creating any custom tables, custom columns, Record Types, and Sales Processes required to receive the TeamSystem data. We design the Lead and Contact field mappings, opportunity stage configurations, and user mapping table. Schema is validated in Sandbox before production migration begins.
Sandbox migration and reconciliation
We run a full migration into the Dynamics 365 Sandbox using production-like data volumes. The customer's RevOps or CRM admin reconciles record counts (Contacts, Accounts, Opportunities, Activities), spot-checks 25-50 records against the TeamSystem source, and validates that owner assignments, stage probabilities, and activity timestamps are correct. Schema corrections and mapping adjustments happen here, not in production.
Owner provisioning and user reconciliation
We extract every distinct TeamSystem owner referenced across Contacts, Companies, Opportunities, and Activities and match by email against the Microsoft Dynamics 365 Sales User table. Owners without a matching Dynamics 365 User go to a reconciliation queue. The customer's Dynamics 365 admin provisions any missing Users before production migration resumes. Migration cannot proceed past record insert without resolved OwnerId references.
Production migration in dependency order
We run production migration in record-dependency order: Accounts (from TeamSystem Companies), Contacts (with AccountId resolved), Leads, Opportunities (with AccountId, OwnerId, and RecordTypeId resolved), Activity history (Tasks, Events, EmailMessages via Dataverse API), then Custom Objects last since they often have lookups to standard entities. Each phase emits a row-count reconciliation report before the next phase begins. The TeamSystem CRM is set to read-only during cutover, and we run a final delta migration of any records modified during the migration window.
Cutover, validation, and workflow rebuild handoff
We enable Microsoft Dynamics 365 Sales as the system of record and deliver the workflow and automation inventory document to the customer's admin team. We support a one-week hypercare window where we resolve any data quality issues raised by the sales team. We do not rebuild TeamSystem workflow rules as Power Automate flows or Dynamics 365 native workflows inside the migration scope; that is a separate engagement. Reports and dashboards do not migrate and are listed in the handoff document for the admin to rebuild in Dynamics 365's reporting workspace.
Platform deep dives
TeamSystem CRM
Source
Strengths
Weaknesses
Microsoft Dynamics 365 Sales
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 TeamSystem CRM and Microsoft Dynamics 365 Sales .
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
TeamSystem CRM: Not publicly documented.
Data volume sensitivity
TeamSystem CRM 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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