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Dimensions let you break down reports by different attributes. Analyze performance by creative, offer, geography, and more.

Built-In Dimensions

Custom Dimensions

Create dimensions from contact custom fields:

Setting Up

  1. Go to SMS Settings > Reporting
  2. Click Scan for Fields, then click a field card to enable it
  3. Click Save Dimensions
Dimension labels are generated automatically from the field name — for example, state becomes State.

Example: State

If contacts have a state field:
  1. Enable state from the scanned field list
  2. The dimension appears in reports labeled State

Cardinality

Dimensions work best with:
  • Low cardinality (few unique values)
  • Meaningful groupings
  • Complete data
Examples:
  • ✅ State (50 values)
  • ✅ Plan type (3 values)
  • ❌ Email (too many unique values)

Using Dimensions in Reports

Performance Report

  1. Go to Reports > Performance
  2. Select dimension from dropdown
  3. View metrics broken down

Example Output

By State:

Dimension Coverage

Not all contacts may have data for a dimension:
Missing values appear as “(not set)” in reports.

Improving Coverage

  • Require field at signup
  • Enrich data from external sources
  • Default values for common cases

Multi-Dimensional Analysis

Combine dimensions for deeper analysis:
Note: More dimensions = more rows = slower reports.

Dimension Refresh

Custom dimension stats — coverage percentage and unique value count — are recomputed each time you click Scan for Fields. Use Recalculate Now to backfill historical report rows with your current custom dimensions. Pick the window first — Recalculate last offers 30, 90, 180 or 365 days — and note that only one recalculation can run per hour.

Best Practices

Date, Message Text, Primary Offer cover most needs. Add custom only when needed.
Dimensions with 50+ values become hard to analyze. Group values if needed.
Dimensions are only as useful as the underlying data. Validate custom fields.

Next Steps

Metrics

Available metrics

Exports

Export data