Migrate from Service Toolz to Mailchimp

Work orders and invoices have no Mailchimp equivalent

Service Toolz stores work orders, quotes, invoices, and inventory as core data types. Mailchimp is an email marketing platform — it has no objects for financial records, scheduling, or service-job tracking. Migrating to Mailchimp means those records do not transfer. We export them as structured CSV reference files so your team retains access to historical service and financial data, but they will not live inside Mailchimp. This is a category mismatch, not a limitation of the migration tooling.

Service Toolz custom fields require manual Mailchimp merge field creation

Service Toolz allows custom fields on contacts and companies (service tier, account type, technician assignment, etc.). Mailchimp requires merge fields to be pre-created in the audience settings before data imports. We deliver a merge field setup checklist as part of the migration plan — but Mailchimp's interface limits each audience to 40 merge fields. If your Service Toolz setup exceeds 40 custom properties, some will need to be consolidated into tags rather than individual fields. This is a destination-side constraint that requires planning before import.

Mailchimp's contact-based pricing means unsubscribed contacts still count

Service Toolz charges per user seat, not per contact. Mailchimp charges per contact in your audience — and since June 2025, unsubscribed contacts still count toward your Mailchimp plan limit. When migrating from Service Toolz, contacts that are marked inactive or have opted out of email will still import into Mailchimp and count toward billing. We recommend a pre-migration cleanup pass to identify contacts without valid email addresses or with explicit opt-out flags before import to avoid unexpected plan tier upgrades in Mailchimp.

Work-order history converts to tags, not linked records

Service Toolz work orders are records with their own fields: job type, scheduled date, technician, parts used, status, and resolution notes. When migrating to Mailchimp, each work order generates a tag on the related contact record. This means you lose the structured relationship between work-order data points. A contact with 50 past work orders will have 50 tags — manageable for segmentation, but not queryable the way Service Toolz lists all jobs for a contact in one view. If your team relies on detailed service history for customer intelligence, consider exporting Service Toolz reports separately rather than relying on Mailchimp tags to replicate that depth.

Mailchimp's free plan limits audience features needed after migration

Mailchimp's free plan caps at 500 contacts and 1,000 emails per month, with automation features removed from free accounts as of June 2025. Most Service Toolz customers migrating to Mailchimp will need a paid plan to use the tagging and segmentation features that carry over from their Service Toolz data. We include a Mailchimp plan recommendation in the migration plan based on contact count and intended campaign frequency. Plan upgrade costs are separate from migration fees and should be factored into the total switching cost.