Sub ID Tracking for Affiliate Campaigns

Quick answer

Use sub IDs to preserve campaign, creative, placement and keyword context through affiliate links.

What matters in practice

• Use separate sub ID positions for stable dimensions such as campaign, creative and placement.
• Do not overload one field with an undecodable string.
• Keep a data dictionary so future reports remain readable.

A practical way to approach it

1. Start with the decision. Be clear about the question the data needs to answer before changing tags, events or reports.
2. Keep the identifiers you need. Preserve the campaign, click, session or customer references needed to follow the journey without collecting data simply because you can.
3. Write down the rules. Use consistent attribution settings, time zones and conversion definitions so comparisons remain meaningful.
4. Test a real journey. Run a controlled visit or conversion and check that the expected event appears once, in the right place, with the right value.
5. Compare like with like. When two reports disagree, line up the date range and definitions first. Many apparent performance problems are measurement differences.

Common mistakes

Reporting disagreements are common, especially when several platforms are involved. Check time zones, conversion definitions, attribution windows and duplicate events before drawing conclusions from the gap. A controlled test click is often faster than staring at two dashboards.

How to evaluate a tracking tool for this job

The right tool is the one your team can operate consistently. Prioritize reliable collection, clear reporting, maintainable integrations and access to raw or exported data where you need it. Extra dashboards are not a substitute for clean definitions.

Next steps

If you want to compare dedicated tracking software, see our ClickMagick review, pricing guide and alternatives guide.