Two-way sync
Changes in Aircall or Folk CRM instantly reflect in both systems. No stale data, no manual imports.
Keep Aircall and Folk CRM in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
Folk CRM holds the people the business talks to: the contacts, their phone numbers and email addresses, and which rep owns the relationship. Aircall is where the talking happens, whether that is calls, texts, email, or meetings. The two depend on the same people, and when the contact list in one drifts from the other, outreach goes to stale numbers and the record of what was said never makes it back to the account.
Stacksync syncs Custom fields, Notes, Reminders, People in Folk CRM with Contacts, Calls, Users, Numbers in Aircall field by field, in real time, and in both directions. Current contact details flow out to Aircall so it can reach the right person, and the calls, messages, and meetings Aircall produces flow back onto the matching record in Folk CRM. You decide which system owns which fields, and conflicts resolve by rules you set.
Sends, bounces, opens, and replies from Aircall update fields on the contact in Folk CRM, so lead status reflects what actually reached the person.
A number, address, or unsubscribe recorded in either system updates the other, so no one calls a disconnected line or messages someone who opted out.
A contact created or updated in Folk CRM appears in Aircall within seconds, so outreach starts without exporting a list or re-keying numbers.
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.
| Aircall objects | Folk CRM objects | How this pairing syncs | |
|---|---|---|---|
| Tags Call tags with name and color; full CRUD, applied to calls for disposition and outcome reporting in the CRM or warehouse. | Notes Free-text context attached to people and companies, readable for reporting. | Tags is specific to Aircall and Notes to Folk CRM — each maps to any object or custom field on the other side. | |
| Teams Groups of users for routing and reporting; create and delete teams and add or remove members to mirror org structure from an HR system or IdP. | Reminders Follow-up items that can be created from external triggers. | Teams is specific to Aircall and Reminders to Folk CRM — each maps to any object or custom field on the other side. | |
| Messages (SMS/MMS) Text messages tied to a number and contact; send outbound SMS/MMS through the API and read inbound messages delivered via webhook events. | People Contact records; the primary entity synced with outreach and enrichment tools. | Messages (SMS/MMS) is specific to Aircall and People to Folk CRM — each maps to any object or custom field on the other side. | |
| Webhooks Event subscriptions for call, contact, user, message, and number events; full CRUD, the mechanism for near-real-time change delivery to Stacksync. | Companies Organization records linked to people and kept aligned with billing or CS systems. | Webhooks is specific to Aircall and Companies to Folk CRM — each maps to any object or custom field on the other side. | |
| Contacts Shared and personal phone-book contacts with full CRUD plus search by phone number or email; the primary two-way object synced with CRM contacts for click-to-dial. | Groups Shared workspaces that organize contacts; group membership is often the field integrations act on. | Contacts is specific to Aircall and Groups to Folk CRM — each maps to any object or custom field on the other side. | |
| Calls Inbound and outbound call records with recording URL, duration, tags, comments, and metadata; the record itself is read-only, but you can add tags, comments, insight cards, transfer, archive, and control recording. | Custom fields Group-scoped attributes that receive enriched or computed values from external systems. | Calls is specific to Aircall and Custom fields to Folk CRM — each maps to any object or custom field on the other side. |
Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.
DetectionAircall notifies Stacksync of record changes through webhook events. Webhooks (POST /v1/webhooks) for call, contact, user, message, and number events.
DeliveryEach detected change is written to Folk CRM through its API, with automatic retries and rate-limit backoff.
DetectionFolk CRM notifies Stacksync of record changes through webhook events. Webhook subscriptions for record events, with polling of list endpoints as a fallback.
DeliveryEach detected change is written to Aircall through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Aircall–Folk CRM connection.
Changes in Aircall or Folk CRM instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Aircall or Folk CRM data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Aircall or Folk CRM record.
Track your Aircall ⇄ Folk CRM sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Aircall and Folk CRM.
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 Aircall and Folk CRM 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 Aircall and Folk CRM 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 Aircall and Folk CRM: authenticate both systems, choose the objects to sync (such as Aircall's Tags and Teams), map fields visually, and changes propagate both ways in milliseconds — no code required.
Common patterns for Aircall and Folk CRM: Where Aircall sends at scale: delivery and reply status back on the contact; One contact list, opt-outs included; New contacts reachable right away. Sends, bounces, opens, and replies from Aircall update fields on the contact in Folk CRM, so lead status reflects what actually reached the person.
Aircall: REST API (Aircall Public API v1, https://api.aircall.io/v1). Authentication: HTTP Basic auth (base64 api_id:api_token) for single-account integrations, or OAuth 2.0 authorization_code flow for multi-tenant Technology Partner apps. Folk CRM: REST API. Authentication: API key (Bearer token). Stacksync manages authentication, retries, and rate limits on both sides.
Folk CRM: The API surface covers people, companies, groups, deals, notes, reminders, and interactions, plus webhook subscriptions for record events. Aircall: Contacts support full CRUD plus search by phone number or email, making them the primary two-way object for keeping Aircall and a CRM in sync. Stacksync's field mapping accounts for these differences between Aircall and Folk CRM 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 Aircall and Folk CRM records are not retained after a sync operation.
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Aircall and Folk CRM connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Aircall–Folk CRM integration in-house.
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 320 integrations available for Aircall and Folk CRM.