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Sync data from Apache Iceberg to Google Gmail

Activate your Apache Iceberg data by syncing it directly into Google Gmail. With Weld's reverse ETL, you can push modelled data such as audience segments, lead scores and account metrics from your database into Google Gmail, making it actionable for your team without manual exports or CSV uploads.

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4.8 on G2
Apache IcebergWarehouse
WeldWeld
Google GmailDestination
Weld · Reverse ETL
Apache IcebergSourceApache IcebergConnected
Models to send

Your own tables, picked when you set up the sync.

  • Model
  • Map fields
  • Upsert
Google GmailDestinationGoogle GmailReady
Objects updated
  • gmail.Synced
  • gmail.Syncing
  • gmail.Synced
  • gmail.Synced

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How it works

How to set up Apache Iceberg to Google Gmail in Weld.
Guided setup in 5 steps.

Full setup guide
  1. Step 01

    Connect your database

    Add Apache Iceberg as a data source in Weld with connection credentials that grant read access. Credentials are stored encrypted and never logged.

  2. Step 02

    Define your transformation

    Write a SQL query or dbt model that selects and transforms the data you want to push to Google Gmail. This is where you build audience segments, compute lead scores, aggregate metrics, or reshape data into the structure Google Gmail expects. You can preview results before activating.

  3. Step 03

    Connect Google Gmail

    Authenticate Google Gmail as a reverse ETL destination. Weld supports OAuth or API key authentication depending on the connector. Once connected, Weld automatically discovers the available objects and fields in Google Gmail.

  4. Step 04

    Map fields and configure sync

    Map your SQL columns to Google Gmail fields using Weld's visual mapper. Choose a sync mode: insert to create new records, update to modify existing ones, or upsert to do both. Then set a schedule from every 5 minutes to daily.

  5. Step 05

    Activate and monitor

    Enable the sync and monitor it from the Weld dashboard. Track record counts, sync duration, and error rates in real time. Configure Slack or email alerts so you're notified immediately if a sync fails or encounters data quality issues.

Use cases

Why sync Apache Iceberg to Google Gmail?
Act on warehouse data.

Push enriched segments and computed attributes from Apache Iceberg into Google Gmail to power personalized outreach and targeted campaigns.

Keep Google Gmail updated with the latest data from Apache Iceberg to automate workflows and reduce manual data entry.

  • Operationalize analytics

    Turn insights from your database into action by pushing model outputs and metrics into Google Gmail where your team works.

Data

What data can you sync?
From Apache Iceberg to Google Gmail.

Model the data in Apache Iceberg with SQL or dbt, then map it to objects in Google Gmail. Which objects you can write to depends on the Google Gmail connector and your account permissions.

    Under the hood

    Technical considerations.
    What to expect.

    ELT

    ELT vs. reverse ETL: Apache Iceberg and Google Gmail

    ELT (Extract, Load, Transform) moves data from Google Gmail into Apache Iceberg for analytics. It's about centralizing data in your warehouse so analysts can query and join it with other sources.

    Reverse ETL does the opposite. It takes data that's already in Apache Iceberg and pushes it into Google Gmail so operational teams can act on it. This is the approach used on this page.

    Many teams use both: ELT to centralize data in the warehouse, and reverse ETL to activate that data back in business tools. Weld supports both directions between Apache Iceberg and Google Gmail.

    Google Gmail to Apache Iceberg
    Sync modes
    Choose between insert, update, or upsert sync modes when pushing data to Google Gmail. Upsert is recommended to avoid duplicates.
    Rate limits
    Weld respects Google Gmail's API rate limits and automatically throttles requests to avoid hitting quotas.
    Data freshness
    Sync frequency depends on your Weld plan. Most connectors support schedules from every 5 minutes up to daily intervals.
    Security
    All data is encrypted in transit (TLS) and at rest. Weld is SOC 2 Type II compliant and supports IP whitelisting for database connections.
    Resources

    Keep reading.
    Guides, docs and schema.

    Documentation

    Apache Iceberg setup guide

    How to connect Apache Iceberg to Weld, step by step.

    Documentation

    Google Gmail setup guide

    How to connect Google Gmail to Weld, step by step.

    Connector

    Apache Iceberg connector

    Everything Weld does with Apache Iceberg.

    Connector

    Google Gmail connector

    Everything Weld does with Google Gmail.

    FAQ

    Common questions.
    About Apache Iceberg to Google Gmail.

    Start syncing Apache Iceberg data to Google Gmail.

    Set up your reverse ETL pipeline in minutes. No credit card required. Free for 14 days.

    Apache IcebergWarehouse
    WeldWeld
    Google GmailDestination
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