CRM migration
Field-level mapping, validation, and rollback between APSIS One and Nutshell. We move data and schema; workflows are rebuilt natively in Nutshell.
APSIS One
Source
Nutshell
Destination
Compatibility
6 of 9
objects map 1:1 between APSIS One and Nutshell.
Complexity
BStandard
Timeline
2-3 weeks
Overview
Moving from APSIS One to Nutshell is a structural shift from a marketing-automation-centric data model to a sales-CRM-centric one. APSIS One stores the primary contact identity as a Profile with Attributes, Tags, Events, and Consent on a single record; Nutshell separates contacts into People (individual records), Companies (organizational records), and Leads (pre-qualified prospects) with their own fields. We map each APSIS One Profile to a Nutshell Person record, preserving standard Attributes (name, email, mobile, birth date) as typed Person fields and custom Attributes as Nutshell custom fields. Tags migrate as label associations, Segments as Nutshell Lists, and Event histories as Task records with a custom activity-type field. We do not migrate Automation Flows because APSIS One's Marketing Automation Canvas has no public API export; we deliver a written inventory of every Flow with its structure and trigger logic for manual rebuild in Nutshell.
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 APSIS One object lands in Nutshell, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
APSIS One
Profile
Nutshell
Person
1:1APSIS One Profiles map directly to Nutshell Person records. Default Attributes (First name, Last name, Email, Mobile with country code, Birth date) map to the corresponding typed Person fields. Custom Attributes in APSIS One map to Nutshell custom fields on Person, which we pre-create during schema design using the Attribute name as the field label and the detected data type (text, number, date, boolean) as the Nutshell field type. CRM-ID from APSIS One maps to a custom field for reference back to the source system.
APSIS One
Attribute (Standard)
Nutshell
Person Field
1:1Standard APSIS One Attributes (firstName, lastName, email, mobile, birthDate, CRM-ID) map to the equivalent Nutshell Person field by exact name match. Mobile phone numbers must include country code per MSISDN format; we validate and prepend country code if missing before import to avoid Nutshell phone field rejection.
APSIS One
Attribute (Custom)
Nutshell
Person Custom Field
lossyCustom Attributes in APSIS One (created in the Section Data Model) map to Nutshell custom fields on Person. We pre-create each custom field in Nutshell during schema design, mapping the APSIS One attribute data type to the nearest Nutshell field type. Multi-value attributes (arrays) map to text fields as comma-separated strings. We flag any attribute that exceeds Nutshell's field name length limit for truncation.
APSIS One
Tag
Nutshell
Person Tag Label
1:1APSIS One Tags export as flat string labels per Profile. We preserve the tag set exactly and apply each tag as a label association on the corresponding Nutshell Person record. Tags with special characters (spaces, slashes) are cleaned to Nutshell's allowed character set. Tag count per Profile is preserved as a reference for the customer to decide whether to create Nutshell custom fields for frequently used tag categories.
APSIS One
Segment
Nutshell
List
1:1APSIS One Segments (dynamic or static) export via the Profiles in Segment Report endpoint. We export the full Profile membership list for each Segment and create a corresponding Nutshell List. Dynamic Segments cannot be replicated as dynamic lists in Nutshell (Nutshell Lists are static); we deliver a written description of each dynamic segment's rule logic for the customer to recreate manually as filter-based segments if Nutshell introduces that capability.
APSIS One
Event
Nutshell
Task
1:manyAPSIS One Event history (email_opened, email_clicked, page_viewed, custom event types) maps to Nutshell Task records with a custom activity-type field carrying the original event name. Each Task's description holds the event payload as JSON text. ActivityDate on the Task is set to the original APSIS One event timestamp to preserve timeline ordering. Large event histories are chunked to avoid request body limits and written in batches.
APSIS One
Consent
Nutshell
Person Email/SMS Opt-In Field
1:1APSIS One Consent records (Consent 2.0) store opt-in status and timestamp per channel (email, SMS) as Profile Attributes. We map consent flags to Nutshell Person fields: email opt-in to the standard email field active flag and SMS opt-in to a custom SMS consent field with the consent timestamp stored as a custom date field. GDPR-compliant consent records are preserved exactly to avoid re-permissioning campaigns in Nutshell.
APSIS One
Section
Nutshell
Workspace
lossyAPSIS One Sections (organizational units holding Segments and Flows) map to Nutshell Workspaces. We create one Nutshell Workspace per APSIS One Section during migration so that Lists and tag groupings remain scoped to the same organizational context the customer used in APSIS One. If the customer has only one Section, no workspace mapping is required.
APSIS One
CRM Integration Record
Nutshell
Company + Person Lookup
1:1APSIS One bidirectional CRM sync (with webCRM, Efficy, Microsoft Dynamics, and Lime CRM) maps Contact, Account, and Deal integration data to Nutshell Company records linked to Person records. We export the current sync state, map CRM Account data to Nutshell Company, and map CRM Contact data to Person records with a lookup to the Company. The CRM-ID attribute from APSIS One preserves the link back to the source CRM record for reconciliation.
| APSIS One | Nutshell | Compatibility | |
|---|---|---|---|
| Profile | Person1:1 | Fully supported | |
| Attribute (Standard) | Person Field1:1 | Fully supported | |
| Attribute (Custom) | Person Custom Fieldlossy | Fully supported | |
| Tag | Person Tag Label1:1 | Fully supported | |
| Segment | List1:1 | Fully supported | |
| Event | Task1:many | Fully supported | |
| Consent | Person Email/SMS Opt-In Field1:1 | Fully supported | |
| Section | Workspacelossy | Fully supported | |
| CRM Integration Record | Company + Person Lookup1:1 | 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.
APSIS One gotchas
Per-profile-key rate limit of 10 req/s
Request body capped at 100 kB
CRM sync state not fully exportable
Automation Flows lack API export
Pricing based on audience size and send volume
Nutshell gotchas
Contact tier limits enforced on import
No bulk API endpoint requires paginated extraction
Email sequences not exportable via API
Foundation plan disables key sales features
Pair-specific challenges
Migration approach
Discovery and data audit
We audit the source APSIS One account across Sections, Profiles, Attributes (standard and custom), Tags, Segments, Event types, and Consent records. We capture profile count per Section, attribute schema per Section, tag vocabulary, segment membership counts, event history volume, and channel consent distribution. We pair this with a Nutshell readiness check: verifying the target Nutshell account has available custom field slots, confirming the workspace structure, and identifying any Nutshell field type constraints that affect custom Attribute mapping. The discovery output is a written migration scope with the exact object mapping, attribute transformation rules, and segment-to-list conversion plan.
Schema design and custom field provisioning
We create all required Nutshell custom fields before any data import. This includes one custom field per APSIS One custom Attribute, a text field for APSIS One event names (activity-type), text fields for event payloads, a date field for SMS consent timestamp, and a reference text field for CRM-ID. We organize custom fields under logical groupings matching the APSIS One Section structure. Each custom field uses the closest matching Nutshell field type; attributes with mixed data types are mapped to text to avoid import rejection.
Test migration and reconciliation
We run a test migration of a representative sample (500-1,000 Profiles) into a staging Nutshell account to validate field mapping, tag application, segment membership, event-to-task transformation, and consent field population. The customer's admin reviews the migrated sample for data accuracy, flags any custom field type mismatches, and confirms that the Segment-to-List conversion meets expectations. We correct any mapping errors before the production migration begins.
Profile and Attribute export
We export APSIS One Profile records via the Profile Data Export API, chunking by Section and respecting the 10 req/s per profile-key rate limit. For each Profile, we extract all standard Attributes, all custom Attributes, the complete tag list, Segment memberships, Consent records, and Event history. Profiles are exported in batches of 100 to stay within the 100 kB request body ceiling. We write each Profile to an intermediate staging format that preserves the full attribute map for field-level mapping during import.
Production migration in dependency order
We run production migration in this order: Workspaces (from APSIS One Sections), Companies (from CRM integration Account data), Persons (from APSIS One Profiles with Company lookup resolved via CRM-ID), custom field population on each Person, Tags (as label associations), Lists (from APSIS One Segment membership), Tasks (from APSIS One Event history with event type and timestamp), and Consent records. Each phase emits a row-count reconciliation report before the next phase begins. We apply a final delta migration to capture any Profiles modified during the migration window before cutover.
Cutover, validation, and Flow rebuild handoff
We freeze APSIS One writes during cutover, run the final delta migration, then enable Nutshell as the system of record. We deliver the Automation Flow inventory document to the customer's admin team, detailing every Flow with its trigger type, conditions, actions, and a recommended rebuild approach using Nutshell workflow rules or a third-party automation platform. We support a one-week hypercare window where we resolve any record-level reconciliation issues. We do not rebuild APSIS One Flows in Nutshell inside the migration scope; that is a separate engagement or an internal admin task.
Platform deep dives
APSIS One
Source
Strengths
Weaknesses
Nutshell
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 APSIS One and Nutshell.
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
APSIS One: 10 req/s per profile key; 100 kB request body limit; HTTP 413 on oversize payloads; HTTP 429 on rate breach.
Data volume sensitivity
APSIS One exposes a bulk API — large-volume migrations stream efficiently.
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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