CRM migration
Field-level mapping, validation, and rollback between SellingLane CRM and HighLevel. We move data and schema; workflows are rebuilt natively in HighLevel.
SellingLane CRM
Source
HighLevel
Destination
Compatibility
8 of 10
objects map 1:1 between SellingLane CRM and HighLevel.
Complexity
BStandard
Timeline
2-4 weeks
Overview
Moving from SellingLane CRM to GoHighLevel is a schema transformation from an auction-specific data model to a general-purpose CRM with custom object capability. SellingLane organizes around Buyers, Lots, Bids, and Auction Events; GoHighLevel uses Contacts, Opportunities, and Custom Objects. We build a custom object schema in GoHighLevel that mirrors SellingLane's auction data model before any records move, preserving Lot-to-Buyer relational links that a flat CSV export would lose. Buyer verification status migrates as a custom Contact field, and auction event groupings reconstruct as date-anchored parent records. Workflows, automations, and sequences do not migrate as code; we deliver a written inventory of every SellingLane automation for your admin to rebuild in GoHighLevel's Workflow builder.
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 SellingLane CRM object lands in HighLevel, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
SellingLane CRM
Buyer
HighLevel
Contact
1:1SellingLane Buyer records map to GoHighLevel Contacts with bidder ID preserved as a custom Contact field (bidder_id__c). Registration date maps to a custom date field (registration_date__c). Buyer verification status (approved, pending, suspended) is a custom property in SellingLane and migrates to a GoHighLevel custom picklist field (verification_status__c). Bidder tier or standing maps to a custom picklist field (bidder_tier__c). We validate email uniqueness during import and flag any duplicate Buyer records for admin resolution before final load.
SellingLane CRM
Lot
HighLevel
Custom Object: Lot
1:1SellingLane Lots map to a GoHighLevel Custom Object named Lot. Lot number becomes the name field, item description maps to a text field, reserve price and starting bid map to currency fields. Reserve status logic (met, not met, no reserve) migrates to a picklist field (reserve_status__c). We build the Lot custom object schema in GoHighLevel before migration, including all standard fields and any custom lot-specific attributes discovered during the audit phase. Custom fields on lots are undocumented in SellingLane; we query the field configuration endpoint during audit to generate a complete field manifest.
SellingLane CRM
Bid
HighLevel
Custom Object: Bid + Task
1:1Bid records are linked to Buyer and Lot in SellingLane and do not exist as standalone rows. Each bid carries bid amount, timestamp, and bid type (floor, absentee, online). We extract bid data and create a GoHighLevel Bid custom object with a lookup relationship to the Lot custom object and a lookup to the Contact record (mapped from the Buyer). Bid order is preserved by setting a sequence number field on each Bid record. For bid records with no linked buyer or lot, we flag orphaned rows during audit and present them to the customer for resolution.
SellingLane CRM
Auction Event
HighLevel
Custom Object: Auction Event
1:1SellingLane Auction Events group lots and bids by sale date and location. GoHighLevel has no native Auction Event object, so we build a Custom Object named Auction Event with fields for event_name, sale_date, location, and catalog_description. Lots link to Auction Events via a lookup field (auction_event__c) on the Lot custom object. We extract all Auction Event records from SellingLane and create corresponding GoHighLevel custom object records before importing Lots. If the customer prefers lots to remain independent, we tag lots with event metadata in a custom text field and skip the parent event reconstruction.
SellingLane CRM
Registration
HighLevel
Custom Object: Registration
1:1Registration records include buyer ID, event ID, registration date, and payment method on file. We map these to a GoHighLevel Registration custom object with lookups to the Contact (from Buyer) and Auction Event (from Event). Registration date migrates as a date field, and payment method on file migrates as a text field. If the destination does not require Registration as a standalone object, we can alternatively nest registration data as custom fields on the Contact record.
SellingLane CRM
Payment/Checkout
HighLevel
Custom Object: Payment
1:1Post-sale payment records include amount, method, date, and buyer association. We map these to a GoHighLevel Payment custom object with a lookup to Contact. Trust-account balance carry-forward is preserved in a currency field (trust_balance__c) if applicable. Where GoHighLevel's built-in Invoice or Payment features are sufficient, we map to those native objects instead and flag the decision during scoping.
SellingLane CRM
Pipeline (Stages)
HighLevel
Opportunity Pipeline
lossySellingLane uses auction-specific workflow stages (Registered, Won, Lost, Paid, Closed). We map these to GoHighLevel Pipeline stages and create a Pipeline in GoHighLevel with matching stage names and order. Each SellingLane stage becomes a GoHighLevel Deal stage. If SellingLane stages have custom automation triggers, we flag these in the automation rebuild inventory because triggers do not migrate.
SellingLane CRM
Owner/User
HighLevel
User
1:1SellingLane staff assigned as lot owners or bidder managers map to GoHighLevel Users. We resolve by email match. Any SellingLane Owner without a matching GoHighLevel User is held in a reconciliation queue for the customer to provision before record import resumes. User active status, role, and team assignment are preserved as GoHighLevel User fields.
SellingLane CRM
Tag/Label
HighLevel
Tag
lossyLots and Buyers may carry classification tags in SellingLane. We export tag sets and apply them as GoHighLevel Tags on the respective records. Tag-based automations in SellingLane do not migrate; we list them in the automation rebuild inventory for the customer's admin to implement in GoHighLevel Workflows.
SellingLane CRM
Attachment
HighLevel
Custom Object: Attachment + GoHighLevel File Storage
1:1Item photos, condition reports, and registration documents attach to Lots and Buyers in SellingLane. We export attachments via the platform's file storage and re-associate them in GoHighLevel using naming conventions that link files to the correct record (Lot ID or Contact ID in filename). Large attachment sets require staging in an intermediate storage location before batch upload to GoHighLevel.
| SellingLane CRM | HighLevel | Compatibility | |
|---|---|---|---|
| Buyer | Contact1:1 | Fully supported | |
| Lot | Custom Object: Lot1:1 | Fully supported | |
| Bid | Custom Object: Bid + Task1:1 | Fully supported | |
| Auction Event | Custom Object: Auction Event1:1 | Fully supported | |
| Registration | Custom Object: Registration1:1 | Fully supported | |
| Payment/Checkout | Custom Object: Payment1:1 | Fully supported | |
| Pipeline (Stages) | Opportunity Pipelinelossy | Fully supported | |
| Owner/User | User1:1 | Fully supported | |
| Tag/Label | Taglossy | Fully supported | |
| Attachment | Custom Object: Attachment + GoHighLevel File Storage1:1 | 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.
SellingLane CRM gotchas
Custom fields on lots are not schema-documented
Bid history relies on Lot-to-Buyer relational links
Auction event groupings must be reconstructed
Buyer verification status is a custom field
HighLevel gotchas
Sub-account architecture creates isolated data silos per client
Usage-based telecom and AI costs are not in the subscription price
Workflows have no native equivalent in most destination CRMs
API rate limits cap bulk migration throughput at 100 requests per 10 seconds per sub-account
White-label configuration and branding assets do not export via API
Pair-specific challenges
Migration approach
Discovery and custom object schema design
We audit the SellingLane portal across buyer volume, lot catalog size, bid record count, auction event frequency, registration and payment record counts, and any custom lot fields. We pair this with a GoHighLevel account review to confirm the custom object limits on the target tier. We design the GoHighLevel custom object schema (Lot, Bid, Auction Event, Registration, Payment) with all fields, picklists, and lookup relationships before any data extraction begins. The discovery output is a written migration scope with record-count estimates and a GoHighLevel custom object schema diagram for customer sign-off.
Custom object creation in GoHighLevel
We create the custom object schema in GoHighLevel per the signed design document. This includes the Lot custom object with lot number, description, reserve price, starting bid, and reserve status fields; the Bid custom object with amount, timestamp, bid type, and lookups to Lot and Contact; the Auction Event custom object with event name, sale date, location, and catalog description; the Registration custom object with date and payment method fields and lookups to Contact and Auction Event; and the Payment custom object with amount, method, date, and trust balance fields. Schema is validated in GoHighLevel before proceeding.
Audit and field manifest generation
We query SellingLane's field configuration endpoint to generate a complete manifest of all custom fields on Buyer and Lot records, including any deprecated or deleted picklist values. We cross-reference every custom field against a sample of live records to confirm data completeness. We flag any field with a deprecated value for the customer's admin to review and correct before migration. We also audit attachment file sizes and counts to plan intermediate storage and batch upload strategy.
Staging migration and relational reconstruction
We run a staging migration into a GoHighLevel test sub-account using production-like data volume. We sequence the load as: Auction Events first (parent records), then Lots (with auction_event__c lookup resolved), then Contacts (from Buyers), then Bids (with lot_id and contact_id lookups resolved). The customer's auction operations lead spot-checks bid-stack ordering, auction event groupings, and buyer verification status across 25-50 random records and signs off before production migration. Any relational mapping corrections happen here, not in production.
Production migration in dependency order
We run production migration in record-dependency order: Auction Events, Lots, Contacts, Bids, Registrations, Payments, Attachments. Each phase emits a row-count reconciliation report before the next phase begins. Owner reconciliation happens in parallel with Contact import, matching SellingLane staff to GoHighLevel Users by email. Attachments upload last using a naming convention that links files to the correct record in GoHighLevel. We freeze SellingLane writes during the production migration window to prevent delta records from accumulating mid-load.
Cutover, validation, and automation rebuild handoff
We freeze SellingLane writes at cutover, run a final delta migration of any records modified during the window, then enable GoHighLevel as the system of record. We deliver the automation rebuild inventory document listing every SellingLane workflow with trigger, conditions, actions, and recommended GoHighLevel Workflow equivalent. We support a one-week hypercare window where we resolve any reconciliation issues raised by the customer's team. We do not rebuild SellingLane automations as GoHighLevel Workflows inside the migration scope; that is a separate engagement or an internal admin task.
Platform deep dives
SellingLane CRM
Source
Strengths
Weaknesses
HighLevel
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 2 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 SellingLane CRM and HighLevel.
Object compatibility
2 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
SellingLane CRM: Not publicly documented.
Data volume sensitivity
SellingLane 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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