Glossary of 2sync terms
Definitions for every key term used in 2sync
2sync uses specific terminology throughout its dashboard, documentation, and settings. This glossary defines every key term so you can configure your automations with confidence. Bookmark this page for quick reference.
What do 2sync terms mean?
Below is a complete reference of terms you will encounter when using 2sync.
| Term | Definition |
|---|---|
| Automation | A configured sync connection between a Notion database and an external app. Each automation defines what syncs, how it maps, and in which direction. |
| Connection | An authenticated link to an external service (Google, Microsoft, Todoist). Created once and reused across automations. |
| Shared Connection | An OAuth connection shared via link so team members can use your connection to sync to a shared Notion database. |
| Field Mapping | The configuration that pairs Notion properties with external app fields. Each mapping defines which data transfers and in which direction. |
| Relation Property | A Notion property type that links rows across databases. Used by 2sync to connect attendees to contacts or tasks to projects. |
| Sync Frequency | How often 2sync checks for changes. Ranges from 2 minutes (Pro) to 5 minutes (Solo) depending on your plan. |
| Time Window | The date range 2sync monitors for items. Events or tasks outside this window are not synced. Ranges from 6 months (Solo) to 2 years (Pro). |
| Two-Way Sync | Changes flow in both directions. Edit in Notion and the external app updates. Edit in the external app and Notion updates. |
| One-Way Sync | Changes flow in a single direction only. Either from the external app to Notion, or from Notion to the external app. |
| Filter / Condition | Rules that control which items sync. Combine conditions using "All conditions" (AND) or "Any condition" (OR) logic, or choose "No filtering" to sync everything. |
| Asset | A calendar, task list, project, or contact group selected for syncing within an automation. |
| Default Asset | The designated asset where new Notion items are created when no specific destination is set. Shown with a green chip on the dashboard. |
| Refresh | A manual action that triggers an immediate sync cycle outside the scheduled frequency. |
| Dry Run | A preview mode that shows what a sync would do without making any actual changes. Useful for testing new configurations. |
| Unsync | Disconnecting an item from its sync partner without deleting it. The item remains in both apps but stops receiving updates. |
| Bypass Halt | A setting that overrides safety limits. When enabled, 2sync proceeds with large deletions or bulk changes that would normally trigger a halt. |
| Static Values | Fixed default values assigned to fields when no source data exists. For example, setting a default calendar color for all new events. |
| Recurring Event | A calendar event that repeats on a schedule. 2sync tracks recurrence metadata and handles each occurrence. |
| Event Exception | A single instance of a recurring event that has been modified independently from the series. |
| Rate Limiting | Temporary throttling imposed by external APIs (Notion, Google, Microsoft) when too many requests are made in a short period. 2sync handles this automatically with retries. |
| Sync Now | A manual trigger that starts an immediate sync cycle outside the scheduled frequency. Use it after bulk changes or to verify a configuration update. |
| Activity Log | A record of all sync operations, changes, and errors for an automation. Use it to review what happened during each sync cycle. |
| Sync Window | Another name for Time Window. The date range 2sync monitors for items to sync. |
| Safety Halt / Auto-Stop | An automatic pause triggered when 2sync detects unusual deletion patterns, such as mass deletions or rapid delete rates. Protects against accidental data loss. |
| Field Mapping Direction | A per-field setting that controls which direction data flows for a specific field. Can be set to two-way, one-way to Notion, or one-way to the external app independently of the automation-level direction. |
Use your browser's find feature (Ctrl+F or Cmd+F) to quickly search for a specific term on this page.
How do I use this glossary?
If you encounter an unfamiliar term in the 2sync dashboard or documentation, search this page. Each term links to the concept as it applies specifically to 2sync, not to general software terminology.
Terms like "asset" and "connection" have specific meanings in 2sync that differ from general usage. Always refer to this glossary for the 2sync-specific definition.
Related
- Sync direction for understanding two-way and one-way sync in detail
- Filters for a detailed guide on filter conditions and logic
- Relations for connecting databases with Relation properties
- Delete behavior for understanding un-sync vs deletion behavior
- Automation statuses for a detailed status reference
FAQ
What is the difference between a Connection and an Automation?
A Connection is your authenticated link to a service like Google or Outlook. An Automation is a specific sync setup that uses that connection to sync data between a Notion database and the connected service. One connection can power multiple automations.
What is the difference between Unsync and Delete?
Unsync breaks the link between two items but keeps both copies. Delete removes the item from one or both platforms depending on your deletion settings. Unsync is the default, safer behavior.
What does Bypass Halt do?
Bypass Halt overrides the safety mechanism that pauses syncing when large-scale changes are detected. Use it only when you intentionally want to proceed with bulk deletions or modifications.
How is a Shared Connection different from a regular Connection?
A regular Connection links your personal account. A Shared Connection lets you share your OAuth connection via a link so team members can use it to sync to the same Notion database. Team members paste the shared link to use your connection.