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Data warehouse ⇄ Storage

AWS S3 to Box integration — real-time, two-way sync

Keep AWS S3 and Box in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

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Adopted by fast-scaling companies moving mission-critical data in real time

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Why teams connect AWS S3 and Box

Bridge query-ready tables and stored files: AWS S3 and Box keep the same records in step, in real time, in both directions.

AWS S3 keeps the tables and query results a business reports on; Box keeps the raw files, documents, and objects that the same business produces and shares. The two overlap wherever a dataset lives as both — a file dropped in Box that has to become rows in AWS S3, or a result in AWS S3 that people downstream need back as a file in Box. When that overlap is bridged by manual export and import or an overnight job, one side spends the day working from a stale copy.

Stacksync syncs Objects, Prefixes, Object Metadata, Object Versions in AWS S3 with Events, Files, Folders, Metadata in Box field by field, in real time, and in both directions. You decide which system owns which fields; Stacksync keeps every copy consistent and resolves conflicts by rules you set.

Common use cases

  • 01 Trigger incremental sync runs from S3 event notifications when new files land in a prefix.
  • 02 Stage bulk loads for warehouses that ingest from object storage.
  • 03 Mirror Metadata template instances on Files into database columns so contracts and assets are searchable and reportable alongside other business data.
  • 04 Provision and deprovision Users, Groups, and Collaborations from an HR system or IdP so Box access follows onboarding and offboarding.

Common sync patterns

Where Box is the shared drive: publish results back as files

Curated tables and query results from AWS S3 are written to Box as files the rest of the business can open, keeping the shared copy current without a hand-run export.

One dataset, kept consistent both ways

Where the same dataset lives as a file in Box and a table in AWS S3, a change on either side propagates to the other, ending the drift between the file people read and the table people query.

Where Box holds the file inventory: make it queryable

The catalog of documents, owners, and folders in Box appears as Objects, Prefixes, Object Metadata, Object Versions in AWS S3, so file metadata can be joined against the rest of your data and reported on.

What you can sync between AWS S3 and Box

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.

AWS S3 objects Box objects How this pairing syncs
Event Notifications Notifications on object creation or deletion that trigger incremental processing. Tasks Review or approval assignments on a file with due dates and states; read for workflow reporting or written to start approvals. Event Notifications is specific to AWS S3 and Tasks to Box — each maps to any object or custom field on the other side.
Access Points Scoped network endpoints used to grant a sync narrow access to a bucket. Events Enterprise admin event stream, an audit log of uploads, deletes, logins, and shares across the account; read-only, consumed for reporting or change feeds. Access Points is specific to AWS S3 and Events to Box — each maps to any object or custom field on the other side.
Multipart Uploads The mechanism used to write large export files reliably. Files Core content object with versions, name, size, and metadata; synced two-way so files and their attributes move between Box and a database or another store. Multipart Uploads is specific to AWS S3 and Files to Box — each maps to any object or custom field on the other side.
Buckets Top-level containers a sync targets; region and policy are set at this level. Folders Hierarchical containers whose tree, names, and parent moves are mirrored so a target system reflects Box's structure; the account root is always folder ID 0. Buckets is specific to AWS S3 and Folders to Box — each maps to any object or custom field on the other side.
Objects The stored files (CSV, JSON, Parquet); syncs read them as datasets or write exports into them. Metadata Structured key-value instances attached to files and folders via metadata templates; synced two-way with database columns for classification and search. Objects is specific to AWS S3 and Metadata to Box — each maps to any object or custom field on the other side.
Prefixes Key-name paths used to partition synced datasets, since S3 has no real directories. Collaborations Access grants linking a user or group to a file or folder with a role such as viewer, editor, or co-owner; written to manage sharing programmatically. Prefixes is specific to AWS S3 and Collaborations to Box — each maps to any object or custom field on the other side.

How changes propagate between AWS S3 and Box

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.

AWS S3 Box Sub-second propagation

DetectionAWS S3 notifies Stacksync of record changes through webhook events. S3 Event Notifications on object create/delete delivered to SQS, SNS, Lambda, or EventBridge.

DeliveryEach detected change is written to Box through its API, with automatic retries and rate-limit backoff.

Box AWS S3 Sub-second propagation

DetectionBox notifies Stacksync of record changes through webhook events. V2 webhooks fire on triggers such as FILE.UPLOADED, FILE.TRASHED, and METADATA_INSTANCE.UPDATED.

DeliveryEach detected change is written to AWS S3 through its API, with automatic retries and rate-limit backoff.

Rate-limit considerations

  • AWS S3: Request throughput scales per prefix; sustained high-volume workloads should spread keys across prefixes.
  • Box: Per user: 1,000 API calls per minute and 240 file uploads per minute; exceeding limits returns HTTP 429 with a Retry-After header. Box Business plans also carry a licensed monthly API-call allotment per enterprise.
What ships with AWS S3 ⇄ Box

Connect AWS S3 and Box for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every AWS S3–Box connection.

Real-time

Two-way sync

Changes in AWS S3 or Box instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever AWS S3 or Box data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.

At scale

Event queues

Handle millions of events per minute without losing a single AWS S3 or Box record.

Observability

Monitoring

Track your AWS S3 ⇄ Box sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between AWS S3 and Box.

How the AWS S3 and Box connectors work

AWS S3

Integration surface
REST API (the S3 API), accessed directly or through AWS SDKs
Authentication
AWS IAM credentials with SigV4 signing; commonly a role scoped to specific buckets and prefixes
Change detection
S3 Event Notifications on object create/delete delivered to SQS, SNS, Lambda, or EventBridge; list-based polling as a fallback
Capabilities
read · write · webhooks
Rate limits
Request throughput scales per prefix; sustained high-volume workloads should spread keys across prefixes

Box

Integration surface
REST API (api.box.com/2.0), plus the Events API and V2 Webhooks
Authentication
OAuth 2.0 for user-delegated access, or server-to-server auth via JWT (RSA keypair) or Client Credentials Grant (CCG) using a Box app; short-lived developer tokens for testing
Change detection
V2 webhooks fire on triggers such as FILE.UPLOADED, FILE.TRASHED, and METADATA_INSTANCE.UPDATED; the Events API (user stream via long-poll by stream_position, or enterprise/admin events) provides a near-real-time change feed
Capabilities
read · write · webhooks
Rate limits
Per user: 1,000 API calls per minute and 240 file uploads per minute; exceeding limits returns HTTP 429 with a Retry-After header. Box Business plans also carry a licensed monthly API-call allotment per enterprise.
How it works

How to connect AWS S3 to Box — three steps, no code

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.

  1. 01

    Connect your apps

    Authenticate AWS S3 and Box with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    AWS S3 connected
    Box connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the AWS S3 and Box 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.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · AWS S3 ⇄ Box
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    AWS S3 Box
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

AWS S3 and Box integration FAQ

SECURITY

Security teams trust Stacksync

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.

Learn more about security
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DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS

SSO & SCIM

Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.

Alerts

Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.

Secure connection options

Securely connects to your systems with:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 534 integrations available for AWS S3 and Box.

Popular · 7 of 534
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