Two-way sync
Changes in Affinity or MotherDuck instantly reflect in both systems. No stale data, no manual imports.
Keep Affinity and MotherDuck in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
The CRM feeds the warehouse and the warehouse should feed the CRM: relationship data flows one way, and computed scores, segments, and customer context flow back. Most teams build the first half as a batch pipeline and never quite get to the second.
Stacksync does both with one connection. List Entries, Persons, Organizations, Opportunities from Affinity land in MotherDuck as live tables, updated within seconds, and columns computed in MotherDuck write back to fields in Affinity. There is no separate ETL and reverse-ETL stack to stitch together and no jobs to babysit.
Join Affinity's relationship data with billing, product, and support data in MotherDuck to build the customer picture the CRM alone cannot hold.
Deduplication and normalization done in MotherDuck can be written back, so warehouse-side cleanup actually fixes the CRM.
Accounts, contacts, and activity from Affinity are queryable in MotherDuck moments after they change, so dashboards stop lagging the reality they describe.
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Affinity objects | MotherDuck objects | |
|---|---|---|
| Interactions Automatically captured emails and meetings, read for activity reporting. | Views Modeled projections used as outbound sync sources. | |
| Reminders Follow-up tasks associated with people and organizations. | Database Shares Read-only copies of a database shared with other users or teams. | |
| Lists Pipelines (deal flow, fundraising, portfolio) that structure most Affinity data; syncs usually target a specific list. | Attached Local DuckDB Databases Local files attached alongside cloud databases for hybrid queries. | |
| List Entries The membership of a person, organization, or opportunity on a list, carrying its list-specific fields. | Databases Cloud-hosted DuckDB databases that scope a sync's reads and writes. | |
| Persons Contact records enriched with relationship intelligence, synced with CRMs and outreach tools. | Schemas Namespaces within a database used to organize synced tables. | |
| Organizations Company records matched to accounts in other systems by domain. | Tables The main landing target for synced records and source for analysis. |
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Affinity–MotherDuck connection.
Changes in Affinity or MotherDuck instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Affinity or MotherDuck data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Affinity or MotherDuck record.
Track your Affinity ⇄ MotherDuck sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Affinity and MotherDuck.
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
Authenticate Affinity and MotherDuck with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Pick the Affinity and MotherDuck objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Affinity and MotherDuck: authenticate both systems, choose the objects to sync (such as Affinity's Interactions and Reminders), map fields visually, and changes propagate both ways in milliseconds — no code required.
Affinity: Affinity captures email and calendar interactions automatically, so much of its activity data is generated rather than manually entered. MotherDuck: Databases can be shared with other users as read-only shares, separating producers from consumers. Stacksync's field mapping accounts for these differences between Affinity and MotherDuck without custom code.
Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Affinity and MotherDuck records are not retained after a sync operation.
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Affinity and MotherDuck connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Affinity–MotherDuck integration in-house.
Yes — Stacksync ships production-grade connectors for both Affinity and MotherDuck. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
Change detection on Affinity: Webhook subscriptions for record events, supplemented by polling. On MotherDuck: Polling; no log-based CDC or webhook surface is exposed. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Affinity and MotherDuck.