CRM migration
Field-level mapping, validation, and rollback between cMercury and Salesforce Sales Cloud. We move data and schema; workflows are rebuilt natively in Salesforce Sales Cloud.
cMercury
Source
Salesforce Sales Cloud
Destination
Compatibility
8 of 12
objects map 1:1 between cMercury and Salesforce Sales Cloud.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Moving from cMercury to Salesforce is an ESP-to-CRM structural migration. cMercury operates on a Subscriber-centric email marketing model; Salesforce Sales Cloud uses a Contact-and-Lead model with Accounts, Opportunities, Tasks, Events, and Campaign Member history. We map cMercury Subscribers to Salesforce Contacts (or Leads for unconverted prospects), Segments to static Salesforce Campaigns, and historical campaign performance data to custom fields on Campaign records. Email verification badges from cMercury Verify migrate as a custom field on each Contact so the receiving team can honour previously validated addresses. Asset Library images migrate as Salesforce ContentDocument records. Sending domains are documented for DNS re-setup rather than transferred. Automations and template block structures do not migrate automatically; we deliver a written automation inventory and a template block-migration note for the customer's admin to rebuild. We use Salesforce Bulk API 2.0 with batch chunking for large subscriber imports to avoid timeout and API limit errors that standard Data Loader CSV paths encounter on high-volume contacts.
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 cMercury object lands in Salesforce Sales Cloud, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
cMercury
Subscriber
Salesforce Sales Cloud
Contact or Lead (split required)
1:manycMercury Subscribers map to Salesforce Contacts if they represent customers or qualified buyers. Subscribers that represent marketing list members or unconverted prospects map to Salesforce Leads. We compute the split using cMercury's subscription status flag and engagement score: high engagement with purchase history suggests Contact; low engagement with no purchase history suggests Lead. The original cMercury subscriber status and engagement score migrate as custom fields (cmercury_status__c and cmercury_engagement_score__c) on both Lead and Contact for audit and re-segmentation.
cMercury
Segment
Salesforce Sales Cloud
Campaign (static)
1:1cMercury Segments (filter-rule audience definitions) map to Salesforce Campaign records as static Contact lists. Each segment member's SubscriberId resolves to the migrated ContactId or LeadId. Salesforce Campaigns support CampaignMember status tracking (Sent, Responded, Opened, Clicked) which we populate from the segment's last associated campaign send history. Complex nested segment conditions that cannot be expressed as static lists are documented as Salesforce Report filters or List Views for the admin to maintain.
cMercury
Campaign
Salesforce Sales Cloud
Campaign
1:1cMercury Campaign records map to Salesforce Campaign. Campaign name, subject line, send date, and aggregate performance stats (opens, clicks, bounces, unsubscribes) migrate as custom fields on the Salesforce Campaign record (cmercury_opens__c, cmercury_clicks__c, cmercury_bounces__c, cmercury_unsubscribes__c). Individual subscriber-level engagement history (open timestamps per subscriber) migrates to Salesforce CampaignMember records with MemberStatus set to Open or Clicked. Campaign content blocks are documented as a template reference note on the Campaign record.
cMercury
Template
Salesforce Sales Cloud
ContentBuilderBlock or EmailTemplate
1:1cMercury templates use a proprietary drag-and-drop block structure. We extract the HTML output and image assets from each template. Pure HTML templates migrate to Salesforce Classic EmailTemplate (with IsActive and Encoding set). Templates built with cMercury's visual block editor require manual recreation in Salesforce Content Builder because block-level component mapping is not exportable. We deliver a template inventory document listing each cMercury template, its estimated block count, and a Content Builder reconstruction note. Image assets from the template are stored separately in Salesforce ContentDocument linked to the template or email send record.
cMercury
Automation
Salesforce Sales Cloud
(documentation only)
lossycMercury Automations are trigger-delay-action sequences tied to subscriber lifecycle events. Salesforce has no equivalent automation import mechanism. We do not migrate automations as code. We document every active automation during discovery: trigger type (subscriber action, date-based, segment entry), conditions, delays, and actions. The output is a written automation inventory with recommended Salesforce Flow equivalents. The customer's admin rebuilds each automation in Flow. Complex automations with multiple branching paths require a separate scoping session before rebuild begins.
cMercury
Custom Field (subscriber profile)
Salesforce Sales Cloud
Custom Field on Contact or Lead
1:1cMercury custom fields on subscriber profiles (text, number, date, dropdown) migrate to Salesforce custom fields on Contact (for customer records) or Lead (for prospect records). Field data types map to Salesforce equivalents: cMercury text to Text(255), cMercury number to Number, cMercury date to Date, cMercury dropdown to Picklist. If the same custom field applies to both Contact and Lead splits, we create it on both objects. Required field settings in Salesforce are applied per the customer's validation requirements, noting that making migrated data required may block import if source values are null.
cMercury
Tag
Salesforce Sales Cloud
Multi-Select Picklist on Contact/Lead or Campaign
lossycMercury tags are flat labels applied to subscribers. We export all tags and their per-subscriber assignments. Tags migrate to Salesforce as a custom multi-select picklist field on Contact or Lead (cmercury_tags__c). Alternatively, tags used for campaign audience classification migrate to Salesforce Campaign with the segment name stored as a Campaign custom field. The customer chooses the tag strategy during scoping.
cMercury
Sending Domain
Salesforce Sales Cloud
(DNS documentation only)
lossycMercury sending domains are configured with DKIM, SPF, and DMARC records tied to cMercury's infrastructure. Sending domains cannot be transferred to Salesforce because they are bound to cMercury's DNS delegation. We document each sending domain's current DNS configuration (DKIM selector, SPF record, DMARC policy) during discovery and provide a DNS setup checklist for the customer to configure equivalent records in their domain registrar pointing to Salesforce's mail servers during cutover. This is a manual step the customer's IT or DNS administrator executes.
cMercury
Asset Library
Salesforce Sales Cloud
ContentDocument
1:1Images and files stored in cMercury's Asset Library are downloaded and re-uploaded to Salesforce Files (ContentDocument). Folder organization in cMercury maps to Salesforce ContentWorkspace (Library) if the destination org uses Content Libraries, or to a flat file structure with naming convention preservation. Image file names and alt text migrate as ContentVersion Title and Description fields. Files linked to specific campaigns carry a ContentDocumentLink to the corresponding Salesforce Campaign record.
cMercury
Engagement Score
Salesforce Sales Cloud
Custom Number field on Contact/Lead
1:1cMercury tracks per-subscriber engagement scores as numeric values derived from opens, clicks, and conversion actions. We export these as numeric values and map them to a custom Number field cmercury_engagement_score__c on Contact and Lead. If the destination Salesforce org uses a scoring app from AppExchange (e.g., Salesforce Engage, High Velocity Sales scoring), we can populate the native scoring field instead if the app is installed before migration.
cMercury
Email Verification Result
Salesforce Sales Cloud
Custom Picklist field on Contact/Lead
1:1cMercury Verify stores per-subscriber validation status: valid, invalid, risky, or catch-all. These badges carry signal value for deliverability: previously verified addresses can be trusted on arrival to Salesforce. We preserve verification status as a custom picklist field cmercury_verification_status__c on Contact and Lead. Salesforce does not run its own email verification natively; the migrated field allows the customer's admin to suppress sending to risky or invalid addresses in Salesforce Flow or a third-party verification tool post-migration.
cMercury
Subscriber Status (subscription flags)
Salesforce Sales Cloud
HasOptedOutOfEmail and custom fields on Contact/Lead
1:1cMercury stores subscription status per subscriber: subscribed, unsubscribed, bounced, spam-reported. These flags map to Salesforce's standard HasOptedOutOfEmail (for unsubscribed), plus custom fields cmercury_bounce_flag__c (boolean) and cmercury_spam_report__c (boolean) on Contact and Lead. Bounce and spam report flags are preserved for suppression in any future email send from Salesforce or a connected marketing tool to prevent deliverability damage.
| cMercury | Salesforce Sales Cloud | Compatibility | |
|---|---|---|---|
| Subscriber | Contact or Lead (split required)1:many | Fully supported | |
| Segment | Campaign (static)1:1 | Fully supported | |
| Campaign | Campaign1:1 | Fully supported | |
| Template | ContentBuilderBlock or EmailTemplate1:1 | Fully supported | |
| Automation | (documentation only)lossy | Fully supported | |
| Custom Field (subscriber profile) | Custom Field on Contact or Lead1:1 | Fully supported | |
| Tag | Multi-Select Picklist on Contact/Lead or Campaignlossy | Fully supported | |
| Sending Domain | (DNS documentation only)lossy | Fully supported | |
| Asset Library | ContentDocument1:1 | Mapping required | |
| Engagement Score | Custom Number field on Contact/Lead1:1 | Fully supported | |
| Email Verification Result | Custom Picklist field on Contact/Lead1:1 | Fully supported | |
| Subscriber Status (subscription flags) | HasOptedOutOfEmail and custom fields on Contact/Lead1:1 | 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.
cMercury gotchas
Free tier caps daily sends at 200 emails
cMercury branding on Free plan emails
Automation workflows do not migrate automatically
Sending domain ownership cannot be transferred
Salesforce Sales Cloud gotchas
Workflow Rules and Process Builder are retired
Bulk API batch quota exhaustion during large imports
Storage overage billing is non-obvious
Account-Contact many-to-many relationship mapping
Territory and team member import ordering dependencies
Pair-specific challenges
Migration approach
Discovery and data audit
We audit the source cMercury account: subscriber count, segment definitions, active campaigns and send history, template count and complexity, active automations, custom field schema, tags, asset library size, and sending domain inventory. We also assess the destination Salesforce org: current edition, existing custom fields, active Campaigns, and whether any AppExchange email tools (e.g., Salesforce Engage, High Velocity Sales) are installed. The discovery output is a written migration scope specifying record counts per object, automation inventory, template list, and DNS configuration checklist.
Schema design and custom field provisioning
We design the Salesforce destination schema in a Sandbox org. This includes creating all custom fields on Contact and Lead (cmercury_status__c, cmercury_engagement_score__c, cmercury_verification_status__c, cmercury_bounce_flag__c, cmercury_spam_report__c, cmercury_tags__c), plus any campaign performance custom fields on Campaign (cmercury_opens__c, cmercury_clicks__c, cmercury_bounces__c, cmercury_unsubscribes__c). For each custom field we set the correct Salesforce data type (Text, Number, Picklist, Boolean), field length, and required/optional setting based on source data availability.
Sandbox migration and reconciliation
We run a full migration into a Salesforce Sandbox (Full Copy or Partial Copy) using production-like data volume. The customer's CRM admin reconciles record counts (Subscribers in, Leads and Contacts out, Campaigns in, CampaignMembers in), spot-checks 25-50 records against the cMercury source, and reviews custom field values for accuracy. Template documentation and automation inventory are delivered alongside the Sandbox migration report for the admin to review before production cutover begins.
Subscriber split and Contact/Lead import
We apply the Subscriber-to-Lead-or-Contact split rule using cMercury subscription status and engagement score. Subscribers marked as customers or with purchase-related engagement history migrate as Contacts (with AccountId resolved via domain-based Account lookup or manual mapping). Subscribers with only marketing engagement migrate as Leads. Custom fields, engagement scores, and verification badges migrate on both object types. Bulk API 2.0 handles batches of up to 10,000 records with backoff on concurrent limit errors.
Segment and campaign migration
Segments migrate as Salesforce Campaign records with static CampaignMember lists built from the split Contact and Lead IDs. Campaign metadata (subject, send date, aggregate stats) populates custom fields on the Campaign record. Individual subscriber-level engagement events (open, click) migrate as CampaignMember records with MemberStatus set to the appropriate Salesforce standard value. Template HTML exports are stored as Notes attached to the Campaign or as Salesforce Files linked via ContentDocumentLink.
Asset migration, template documentation, and cutover
Asset Library images and files upload to Salesforce ContentDocument with ContentWorkspace linkage. Template extraction documentation is delivered as a structured spreadsheet with each template's block count and reconstruction notes. Automation inventory is delivered as a separate document with trigger maps and recommended Flow equivalents. We freeze writes in cMercury during cutover, run a final delta migration of any records modified during the migration window, then enable Salesforce as the system of record. DNS configuration for sending domains is handed off to the customer's IT or DNS admin to execute. We support a one-week hypercare window for reconciliation issues raised by the team.
Platform deep dives
cMercury
Source
Strengths
Weaknesses
Salesforce Sales Cloud
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 cMercury and Salesforce Sales Cloud.
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
cMercury: Not publicly documented. cMercury's Terms reference API rate limits as service restrictions but exact thresholds are not disclosed on the public docs site (cmercuryapi.readme.io)..
Data volume sensitivity
cMercury 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.
Category
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