> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flokitai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Data requirements

> Minimum events and properties for payback-aware optimization.

The more complete the growth loop data is, the more reliable FloKit actions become.

## Required signals

* Spend by channel, campaign, ad set, creative, country, and day
* Install or signup attribution
* Activation events that indicate product value
* Trial start, subscription start, renewal, cancellation, refund, and plan change events
* Revenue amount, currency, tax treatment, and platform fee assumptions

## Useful properties

* App, platform, country, language, and acquisition source
* Campaign, ad set, creative, and landing experience IDs
* Offer, plan, price, trial length, and paywall variant
* User or anonymous ID suitable for privacy-safe cohort joins

## Data quality checks

* Event timestamps use a consistent timezone
* Revenue is deduplicated across app store, payment, and warehouse sources
* Campaign IDs are stable enough to join cost and outcome data
* Refunds, cancellations, and grace periods are represented consistently