Can Affinity and Attio sync in both directions?

Confirm two-way support with Stacksync for the records and fields you need in both systems. Access to a vendor API does not confirm that its Stacksync connector supports write-back.

What should be ready before the Affinity and Attio initial load?

Prepare both accounts, the selected object schemas, stable source and destination IDs, and the expected outcome. Identify the Affinity account, edition, environment, and business objects the integration must access. Create an Attio connection in Stacksync and complete the guided authorization flow. Use the pair worksheet to record ownership and acceptance criteria.

How fast does the Affinity to Attio sync run?

Measure initial-load and ongoing-change latency separately. Source detection, selected objects, account limits, and destination validation determine the observed delay.

Will existing duplicates merge automatically?

No. Stacksync documents that pre-existing duplicates are not merged automatically when two-way sync begins. Review the initial dataset and matching plan before enabling it; an empty destination can simplify the first load.

How do I map Affinity fields to Attio?

Start with one business entity and a stable record ID. Map a small set of editable fields with compatible types, test required values and relationships, then expand after the pilot passes.

What should I do if a record fails to sync?

Check the destination error, field constraints, permissions, and current source value. The Stacksync issues dashboard supports retry and revert; retry reads current source values, so verify the intended record state before acting.

What does a Affinity and Attio integration cost?

Use the current Stacksync pricing page and confirm the supported implementation with the team. Scope the required objects, record volume, update frequency, initial load, and support needs when comparing a managed connector with native or custom development.

Which records should the Affinity and Attio pilot start with?

Start by reviewing Organizations in Affinity and Companies in Attio. Check how these records relate in your workflow, then confirm the actual fields and supported operations. Test record matching and one failed or repeated update before adding more records.

CRM

Affinity and Attio integration

Plan how Affinity and Attio should share data across your business. Work with Stacksync engineers on record mapping, system access, and the requirements for running the integration.

Scope your workflow with an integration engineer
Review the systems, records, and updates you need

Integration planning

stacksync.com

Affinity

Attio

Review the integration scope

Teams building with Stacksync

Plan the connection your business needs

Explore a Affinity and Attio integration with a Stacksync engineer. Stacksync support for Affinity is not established by the connector documentation reviewed for this page. Start with one record and the update your business needs to identify an implementation path.

01 / Business process

Start with one meaningful update

Identify the record that changes in Affinity or Attio, where it needs to appear, and which team depends on it.

02 / Data access

Establish the available connection

Bring the objects, account editions, and required directions. An engineer can review the connector path, permissions, and field access.

03 / Success criteria

Define a result you can verify

Agree on record matching, acceptable delay, expected volume, and how your team will resolve failed updates.

Explore the technical references

Technical referenceAvailable documentation, candidate record relationships, and questions for your technical review.

What records can you sync?

Explore the record types and read/write requirements for each system.

AffinityConnection and object support require review

Record types to review with Stacksync

Record type	Coverage and requirements
Lists	Confirm support for this record type and the direction you need.
List Entries	Confirm support for this record type and the direction you need.
Persons	Confirm support for this record type and the direction you need.
Organizations	Confirm support for this record type and the direction you need.
Opportunities	Confirm support for this record type and the direction you need.
Field Values	Confirm support for this record type and the direction you need.

Discuss Affinity requirements

AttioRead and write support varies by recordPeople · Companies · Users

Record types covered in the setup guide

Record type	Coverage and requirements
People	✅ Supported. Confirm field permissions and sync direction.
Companies	✅ Supported. Confirm field permissions and sync direction.
Users	✅ Supported. Confirm field permissions and sync direction.
Deals	✅ Supported. Confirm field permissions and sync direction.
Workspaces	✅ Supported. Confirm field permissions and sync direction.
Custom objects (all)	✅ Supported. Confirm field permissions and sync direction.

Read the Attio connector guide

Connection requirements and limits

Affinity

Integration interface: REST API
Authentication: Confirm the credentials, API plan, and permissions required for Affinity.
Change detection: Confirm how Stacksync detects changes for this connector and the objects you need.
Read access: Confirm with Stacksync
Write access: Confirm with Stacksync

Limitations to check

Confirm Stacksync support for Affinity and the record types your workflow needs.
Review write-back, deletion handling, update timing, and account limits with the integration team.

Attio

Integration interface: REST API
Authentication: Guided authorization in the Stacksync connection flow; the saved guide does not name the authentication protocol.
Change detection: The saved Stacksync guide does not specify the change-detection mechanism. Confirm it for the selected objects.
Read access: Available for supported records
Write access: Available for supported records

Limitations to check

The connector documents two-way sync, but the object table does not specify which individual fields are writable. Confirm field permissions and change detection for the intended use case.

Technical documentation

Documentation reviewed 2026-09-15. Check the linked guides for current account and record requirements.

Attio setup guide

Prepare your technical review

Use the worksheets and reference checks to capture record identity, ownership, and the result your business expects.

Implementation reference

Record identity and field ownership

Use these data-model references to describe the records your connection needs. They are planning examples; connector availability and supported operations must be established before implementation.

Download the mapping worksheet

CSV · No email required · Record matching, ownership, and test cases

Record matchingOrganizations Companies

Compare whether Affinity Organizations and Attio Companies describe the same company in your business.

Affinity: Object support to establish
Attio: Documented record · ✅ Supported

Record identity

Retain the source company ID and the destination customer/company ID. Separate legal entities, subsidiaries, and business units; a shared name or web domain is insufficient.

Field ownership

Assign ownership separately for relationship details and finance-controlled billing details.

Fields to include

Source record ID
Legal or display name
Business-unit reference
Lifecycle status

References: Attio: Companies documentation

Record matchingPersons People

Compare whether Affinity Persons and Attio People describe the same contact in your business.

Affinity: Object support to establish
Attio: Documented record · ✅ Supported

Record identity

Use a stable person/contact ID and an explicit cross-system lookup. Email can change and can be shared, so treat it as a matching clue rather than a universal key.

Field ownership

Keep consent and communication preferences under an agreed authority; a general contact update must not silently resubscribe someone.

Fields to include

Source person ID
Display name
Email address
Organization reference
Consent state

References: Attio: People documentation

Record matchingOpportunities Deals

Compare whether Affinity Opportunities and Attio Deals describe the same deal or opportunity in your business.

Affinity: Object support to establish
Attio: Documented record · ✅ Supported

Record identity

Keep the opportunity/deal ID separate from any later order or invoice ID.

Field ownership

The sales process owns qualification and stage changes; downstream financial records have their own state and approval rules.

Fields to include

Source deal ID
Stage
Amount and currency
Expected close date
Company reference

References: Attio: Deals documentation

Architecture decision

Choose how to connect your systems

Choose a method around one example record and the update your business needs. Use Organizations / Companies to review record matching and confirm Stacksync support for the required operations. Compare ongoing sync, a custom workflow, and a scheduled export against that requirement.

Stacksync managed sync

Best fit: Review compatibility with a Stacksync engineer using an example of the records and updates you need.
Operating responsibility: Fits ongoing record synchronization when the required operations are supported. Add workflow steps for approvals or business actions that go beyond copying fields.
Before you choose: Check record matching: Retain the source company ID and the destination customer/company ID. Separate legal entities, subsidiaries, and business units; a shared name or web domain is insufficient. Verify field coverage, deletion handling, and how changes are detected.

Native vendor integration

Best fit: A vendor-built integration may fit if it supports your Affinity and Attio record types.
Operating responsibility: Can reduce setup for a supported workflow. You may need another method for records or business steps it does not cover.
Before you choose: First check whether either vendor offers this integration. If available, verify Organizations / Companies, update direction, account tier, and related-record handling.

Custom API or workflow

Best fit: Consider when Affinity and Attio need a transformation, approval, or action outside a direct record sync.
Operating responsibility: Provides control over business steps; the team owns credentials, version changes, error queues, and reconciliation.
Before you choose: Verify endpoint permissions, pagination, quotas, duplicate detection, and failure recovery.

File or scheduled snapshot

Best fit: Consider for a one-time Affinity / Attio migration or a reporting need with an explicit freshness window.
Operating responsibility: Can simplify a bounded transfer; later changes and deletion history require another extraction or a separately designed incremental process.
Before you choose: Record the extraction cutoff, source IDs, encoding, date/number formats, and reconciliation totals.

Workflow reference

From a business event to the right update

Open a workflow to see its trigger, record relationships, and expected result.

Company sync test

Starting event: A change to the selected Organizations or Companies record needs a defined result in the other system.

Start with Affinity Organizations and Attio Companies. Use the record-matching and field-ownership rules from your mapping worksheet.
Resolve parent organizations, business units, and currency references before dependent transactions.
Test a normal update and one failed or repeated update in the supported direction. Keep both record IDs with the test results.

Expected result: Use two organizations with similar names and one with multiple business units. Verify that an update reaches the intended entity only.

If it fails: Repair the cross-system ID relationship before retrying dependent records; do not merge companies solely to remove a sync error.

Contact sync test

Starting event: A change to the selected Persons or People record needs a defined result in the other system.

Start with Affinity Persons and Attio People. Use the record-matching and field-ownership rules from your mapping worksheet.
Resolve the organization relationship and any owner or consent references required by the destination.
Test a normal update and one failed or repeated update in the supported direction. Keep both record IDs with the test results.

Expected result: Test an email change, two records sharing an email, and a person associated with multiple organizations.

If it fails: Hold ambiguous matches for review and reconcile the person ID before retrying; preserve the consent decision already recorded by its owner.

Deal or opportunity sync test

Starting event: A change to the selected Opportunities or Deals record needs a defined result in the other system.

Start with Affinity Opportunities and Attio Deals. Use the record-matching and field-ownership rules from your mapping worksheet.
Map the customer and sales pipeline before the opportunity; map stage values deliberately.
Test a normal update and one failed or repeated update in the supported direction. Keep both record IDs with the test results.

Expected result: Test a reopened won deal, a stage with no destination equivalent, and an amount using a different currency.

If it fails: Suspend downstream creation for a rejected deal and review whether an order already exists before retrying.

Plan the customer lifecycle across Affinity and Attio

Starting event: A customer-facing change in Affinity needs operational context in Attio.

Select the relevant Persons or Organizations records and identify whether the downstream relationship is a person, a company, a deal, or a reporting row.
Define which lifecycle transitions are informative and which should request a downstream action. Keep conversion and merge history connected to stable IDs.
Choose a representative reopened deal, changed contact identity, or reassigned account to test the handoff before expanding.

Expected result: The relationship survives a lifecycle change without creating a duplicate customer or triggering an unintended business action.

If it fails: Inspect merge/conversion history and existing destination records before replaying a lifecycle transition.

Detect changesConfirm how Stacksync detects changes for this connector and the objects you need.

Apply updatesConfirm that Stacksync can create or update the records you need in Attio.

Attio Affinity Direction requires confirmation

Detect changesThe saved Stacksync guide does not specify the change-detection mechanism. Confirm it for the selected objects.

Apply updatesConfirm that Stacksync can create or update the records you need in Affinity.

Update timing and record limits

Measure initial-load and ongoing-change latency separately. Source detection, selected objects, account limits, and destination validation determine the observed delay.
Review write-back, deletion handling, update timing, and account limits with the integration team.

Prepare Affinity and Attio access

Set up both accounts before testing the mapping. Use test records where available, and identify the account administrator who can approve access and help resolve setup errors.

Affinity setup checklist

Identify the Affinity account, edition, environment, and business objects the integration must access.
Confirm a Stacksync connector or implementation path for Affinity, including read/write support, authentication, and initial-load limits.

Attio setup checklist

Create an Attio connection in Stacksync and complete the guided authorization flow.
Check that the required objects appear in the documented catalog; confirm write-back for each intended object.

Setup guides: Authorize Attio

Prepare to go live

Record the fields each system can update, the first-load cutoff, both record IDs, the expected update delay, and who handles errors. Complete the tests before production before expanding to more records.

Use the Affinity and Attio planning worksheet to capture these decisions. Record the access owner in the worksheet and enter credentials only in the connection setup.

Talk to an engineer · Review current pricing

Security and control for your integrations

Use SSO and SCIM to manage access, secure connection options to reach your systems, and record-level retry and revert controls to resolve sync errors.

Explore security controls

FAQ