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Offline Sales Attribution

Offline Sales Attribution allows advertisers to measure how digital and CTV advertising influences real-world business outcomes such as in-store purchases, CRM events, phone sales, or other offline conversions.


By connecting offline transaction data to digital advertising exposure, JamLoop helps advertisers better understand campaign performance beyond online-only activity.

How It Works

1. Upload Offline Conversion Data

Advertisers provide offline sales or CRM data to Clean Room in a secure format.

Common examples include:

  • In-store purchase records

  • Loyalty or membership transactions

  • Lead or CRM events

  • Call center sales

Recommended fields include:

  • Transaction ID

  • Transaction timestamp

  • Revenue or purchase amount

  • Customer identifiers such as:

    • Email address

    • First and last name

    • Mailing address

The more complete the customer data, the higher the likelihood of successful matching.


2. Convert Offline Transactions into Digital Events

JamLoop works with trusted identity resolution partners to translate offline transaction data into digital identifiers such as:

  • Household IDs

  • IP-based identifiers

This process allows offline sales to be represented as digital conversion events that can be measured against advertising exposure.


3. Measure Advertising Impact

Once converted into digital events, offline conversions are processed through JamLoop’s attribution system and matched against campaign exposure data.

This enables advertisers to evaluate:

  • Offline conversions

  • Revenue and ROAS

  • Campaign effectiveness

  • Cross-channel performance trends


Data Formatting Best Practices

To improve attribution quality and reporting accuracy, follow these best practices when preparing offline conversion files.

Use One Row Per Transaction

Each uploaded row should represent a single completed transaction.

Do not upload:

  • Separate rows for individual products within the same purchase

  • Separate tax or fee rows

  • Separate promotional or discount rows

Instead, aggregate all related line items into a single transaction record that includes:

  • One transaction ID

  • One total purchase amount

  • One timestamp

  • One set of customer identifiers

Include Strong Customer Identifiers

Providing multiple customer identifiers improves match quality.

Recommended identifiers include:

  • Email address

  • Full name

  • Postal address

Include Accurate Timestamps

Transaction timestamps should reflect the actual time of purchase whenever possible.

Consistent timestamp formatting helps improve attribution accuracy and reporting consistency.


Processing Timeline & Expectations

Offline conversion files are processed twice per month:

  • The 1st

  • The 15th

Customers should upload files at least 1-2 days before these processing dates.

After submission:

  1. Files are sent to JamLoop's identity resolution partner for matching

  2. Matched records are typically returned within 48 hours

  3. Results are then incorporated into JamLoop's standard attribution processing workflow

In most cases, customers should expect offline attribution results to begin appearing within a few days after a scheduled processing date.


Reporting & Insights

Offline Sales Attribution reporting is available within the JamLoop platform and can be integrated into external reporting or BI environments.

Available metrics may include:

  • Offline conversions

  • Revenue attribution

  • Return on ad spend (ROAS)

  • Campaign performance trends

These insights can help advertisers optimize media strategy, budget allocation, and overall campaign performance.

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