# Data used to train Algorithms

The data used to train AB Tasty Recommendation & Merchandising algorithm is provided through the integrations you set.

\
When there are multiple integration sources, the data can come from any of those integrations.\
The recommendation algorithms, such as similar\_items and associated\_items, use different data analysis periods depending on the data sources:

\
**Google Analytics 4 (GA4):**

* Transactions: 90 days.
* Product views: 120 days.Data from GA4 is only available starting from the date the BigQuery GA4 connection was created.

**Shopify:**

* Transactions: limited to 60 days.

**PrestaShop:**

* Transactions: 90 days.

These periods are defined by the limitations of the data sources and ensure efficient analysis for recommendations.

## Data used to train Recommendations Algorithms <a href="#h_01jdktfdvp0wkds34gpzsjepmm" id="h_01jdktfdvp0wkds34gpzsjepmm"></a>

**Product pages viewed in session**\
sessionID + pageUrl (+ userID optionnally) for each pageview\
integration source: Analytics

**Transactions**\
transactionID + itemID (+ userID optionnally) for each transaction\
integration source: Analytics, Transaction feed, CMS

**Catalog**\
itemID + pageUrl + …itemProperties (+ userID optionnally) for each item\
integration source: CMS, Catalog feed

**User**

userID + …userProperties\
integration source: CRM (optional)


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