Migrate from CRM.io by 500apps to Mailchimp

CRM.io Contact records (name, email, phone, company association) map 1:1 to Mailchimp subscribers within the primary Audience. Email address serves as the primary key for deduplication during import. We map CRM.io contact status (active/inactive) to Mailchimp's unsubscribed or archived states. Phone numbers map to Mailchimp's phone merge field. Any CRM.io custom field values (if present in the CSV export) map to Mailchimp merge fields with type inference: text strings to text fields, dates to date fields, numbers to number fields.

CRM.io Account records hold company name, industry, size, and address data. Mailchimp has no standalone Account object, so we merge Account fields into the Subscriber record. Company name maps to the COMPANY merge field; industry and company size map to custom text merge fields or tags on each subscriber. The Account-to-Contact link is reconstructed via the company name lookup because there is no API on the CRM.io side to preserve the foreign key relationship through CSV alone. We flag any Contact with a missing or empty company association for manual review before the Mailchimp load.

CRM.io Lead records have no direct Mailchimp equivalent since Mailchimp does not have a Lead object. We merge Leads into Subscribers using email as the match key, and apply a LEAD tag to distinguish them from converted Contacts in Mailchimp's audience. Lead source and lead status are preserved as merge fields (LEADSOURCE, LEADSTATUS) if present in the CRM.io CSV export. Teams that need full lead-stage tracking in Mailchimp should use Tags or Mailchimp's Segments feature to replicate lead scoring.

CRM.io Deals carry deal name, stage, value, close date, and owner. Mailchimp has no Opportunity or Deal object. We map Deal data onto the subscriber record by tagging the Contact (or Account's primary Contact) with a tag pattern such as 'Deal: [DealName] - [Stage] - $[Value]'. Close date and deal notes are appended as a contact note in Mailchimp. Pipeline stage names are stored as tags on the contact record. We document the full deal history separately so the customer can decide whether to maintain deal tracking in a spreadsheet, a project management tool, or a dedicated CRM alongside Mailchimp.

CRM.io Activities link to Contacts or Deals with type, subject, date, and notes. Mailchimp does not have a native activity timeline. We append activities as formatted notes on the subscriber record, structured as '[Date] [ActivityType]: [Subject] - [Notes]'. Because CRM.io CSV exports do not reliably preserve the parent Contact ID on activity rows, we reconstruct the Contact association using date and subject matching. Large activity histories require a separate note-import phase after the primary subscriber load. We flag activity records where the linked contact cannot be resolved for customer review before loading.

CRM.io tags on Contacts and Deals export as comma-separated values in the CSV. Mailchimp natively supports Tags on subscribers. We expand each CRM.io tag value into individual Mailchimp tags on the corresponding subscriber. Tag-based segmentation in CRM.io maps directly to Mailchimp Segments, which filter by tag, merge field values, or engagement data. We provide a tag mapping table during scoping so the customer can review the segmentation strategy before Mailchimp load.

CRM.io assigns record ownership to Users. Mailchimp has no owner concept and no user-role model at the contact level. We tag each subscriber with the CRM.io owner name as a tag (format: OWNER: [OwnerName]) so that the customer can trace record provenance. We provide the owner mapping table during scoping for the customer to assign Mailchimp team members or agency contacts manually post-migration.

CRM.io pipeline stages (e.g., Prospecting, Qualification, Proposal, Negotiation, Closed Won, Closed Lost) have no Mailchimp equivalent. We map each pipeline to a tag namespace on the subscriber record. For example, a CRM.io Deal in the 'Proposal' stage belonging to the 'Enterprise Pipeline' maps to tags 'Pipeline: Enterprise Pipeline' and 'Stage: Proposal'. This preserves pipeline context as tag data that the customer can filter using Mailchimp Segments. We document the full pipeline-stage matrix during scoping for the customer to validate before migration.