Event alert definitions

This page lists every alert on the Event alerts page, what they mean, and which Bloomreach features they affect. Use it to decide which alerts to fix first. For step-by-step debugging, see Debugging Pixel Issues.

There are two kinds of alert:

Volume alerts fire when a page view or event type drops sharply compared with its average over the past 14 days. A drop can also come from normal traffic changes, such as weekends on B2B sites.
Parameter alerts fire when a share of the previous day's pixels has a required parameter that is missing or invalid. Most of these checks only test for missing, empty or badly formatted values. They don't check that IDs match your catalog, so a green alert doesn't guarantee correct data.

A feature shows a red status in Feature status when at least one alert that affects it is failing.

Page views

Category page views

Alert What it means Features affected

Category page view volume Category Page View pixel events are firing less often than the previous 14 day period, reducing the data Category Ranking is able to rank on. Can also be triggered by expected traffic patterns. Category ranking, Insights, A/B testing, Autosuggest

Alert	What it means	Features affected
Category page view volume	Category Page View pixel events are firing less often than the previous 14 day period, reducing the data Category Ranking is able to rank on. Can also be triggered by expected traffic patterns.	Category ranking, Insights, A/B testing, Autosuggest
Missing `cat_id` parameters	The `cat_id` parameter received in Category page views is missing or null. The `cat_id` parameter is used to attribute a session's activity to a specific category. This alert only checks for null `cat_id` parameters, it doesn't check for invalid `cat_id` parameters. There may still be an issue with the `cat_id` parameter formatting that would not trigger this alert.	Category ranking, 1:1 personalization, Real-time segments, Insights, A/B testing
Missing `cat` parameters	The `cat` parameter received in Category page views is missing or null. The `cat`parameter is used to display category names in reporting, not for algorithm learning. This alert only checks for null `cat` parameters, it does not check for invalid `cat` parameters. There may still be an issue with the `cat` parameter formatting that would not trigger this alert.	Insights, A/B testing

Missing cat_id parameters

The cat_id parameter received in Category page views is missing or null. The cat_id parameter is used to attribute a session's activity to a specific category.

This alert only checks for null cat_id parameters, it doesn't check for invalid cat_id parameters. There may still be an issue with the cat_id parameter formatting that would not trigger this alert.

Category ranking, 1:1 personalization, Real-time segments, Insights, A/B testing

Missing cat parameters

The cat parameter received in Category page views is missing or null. The catparameter is used to display category names in reporting, not for algorithm learning.

This alert only checks for null cat parameters, it does not check for invalid cat parameters. There may still be an issue with the cat parameter formatting that would not trigger this alert.

Insights, A/B testing

Search page views

Alert	What it means	Features affected
Search page view volume	Search Page View pixel events are firing less often than the previous 14 day period, reducing the data Search Ranking is able to rank on. Can also be triggered by expected traffic patterns.	Search ranking, Insights, A/B testing, Autosuggest
Invalid `search_term` parameters	The `search_term` parameter received in Search page views is missing or invalid	Search ranking, 1:1 personalization, Real-time segments, Insights, A/B testing, Autosuggest

Product page views

Alert What it means Features affected

Product page view volume Product Page View pixel events are firing less often than the previous 14 day period, reducing the product data available to be used by many features. Can also be triggered by expected traffic patterns. Search ranking, Category ranking, 1:1 personalization, Insights, A/B testing, Recommendations, Autosuggest

Alert	What it means	Features affected
Product page view volume	Product Page View pixel events are firing less often than the previous 14 day period, reducing the product data available to be used by many features. Can also be triggered by expected traffic patterns.	Search ranking, Category ranking, 1:1 personalization, Insights, A/B testing, Recommendations, Autosuggest
Missing `prod_id` parameters	The `prod_id` parameter received in Product page views is missing or null, so the view can't count toward that product's performance data. This alert only checks for null `prod_id` parameters, it does not check for invalid `prod_id` parameters. There may still be an issue with the `prod_id` parameter formatting that would not trigger this alert.	Search ranking, Category ranking, 1:1 personalization, Real-time segments, Insights, A/B testing, Recommendations
Product IDs in Add to Cart event missing from Product page view	A large share of `prod_id` parameters received in Add to Cart events aren't showing up in a prior Product page view, which is needed to connect a shopper's journey and properly attribute data. This may be expected if you have a large share of ATCs from quick view events rather than product page views.	1:1 personalization, Insights, A/B testing

Missing prod_id parameters

The prod_id parameter received in Product page views is missing or null, so the view can't count toward that product's performance data.

This alert only checks for null prod_id parameters, it does not check for invalid prod_id parameters. There may still be an issue with the prod_id parameter formatting that would not trigger this alert.

Search ranking, Category ranking, 1:1 personalization, Real-time segments, Insights, A/B testing, Recommendations

Product IDs in Add to Cart event missing from Product page view A large share of prod_id parameters received in Add to Cart events aren't showing up in a prior Product page view, which is needed to connect a shopper's journey and properly attribute data. This may be expected if you have a large share of ATCs from quick view events rather than product page views. 1:1 personalization, Insights, A/B testing

Conversion page views

Alert	What it means	Features affected
Conversion page view volume	Conversion Page View pixel events are firing less often than the previous 14 day period, reducing the conversion data that many features rely on, especially ranking. Can also be triggered by expected traffic patterns.	Search ranking, Category ranking, 1:1 personalization, Insights, A/B testing, Recommendations, Autosuggest
Invalid basket parameters	The basket parameter received in Conversion page views is missing or the format is invalid, so there's no product-level data for those sales.	Search ranking, Category ranking, 1:1 personalization, Real-time segments, Insights, A/B testing, Recommendations
Invalid `basket_value` parameters	The `basket_value` parameter received in Conversion page views is missing or invalid (for example, $0 or non-numeric). This corrupts the revenue signal that supports product ranking.	Search ranking, Category ranking, Real-time segments, Insights, A/B testing
Invalid quantity parameters (in basket items)	The quantity parameter on one or more basket items is missing or invalid (for example, zero or a negative number).	Insights, A/B testing
Invalid `sku` parameters (in basket items)	The `sku` parameter (product variant) on one or more basket items is missing or invalid.	Search ranking, Category ranking
Invalid `price` parameters (in basket items)	The `price` parameter on one or more basket items is missing or invalid (for example, zero or a negative number).	Search ranking, Category ranking, Insights, A/B testing
Invalid `prod_id` parameters (in basket items)	One or more `prod_id` parameters in the basket items are missing or invalid, so those sales can't count toward those products' performance data.	Search ranking, Category ranking, 1:1 personalization, Real-time segments, Insights, A/B testing, Recommendations
Non-unit pricing for basket item `price` parameters	The `price` parameter on one or more basket items looks like a line total (price times quantity) rather than the price of a single unit, throwing off per-item revenue numbers.	Search ranking, Category ranking, Insights, A/B testing
Total basket price inconsistent with `basket_value` parameters	The sum of basket item prices are different than the `basket_value` parameter by greater than 10%, meaning the item-level and order-level totals disagree. This may be an expected variation due to promotions or delivery fees, or could indicate a larger issue.	Insights, A/B testing

Other page types

Alert	What it means	Features affected
Homepage page view volume	Homepage Page View pixel events are firing less often than the previous 14 day period. Can also be triggered by expected traffic patterns.	Insights
Thematic page view volume	Thematic Page View pixel events (SEO and campaign landing pages) are firing less often than the previous 14 day period. Can also be triggered by expected traffic patterns.	Insights
Other page view volume	Page View pixel events for other page types are firing less often than the previous 14 day period. Can also be triggered by expected traffic patterns.	Insights, Autosuggest

Virtual page views

Alert	What it means	Features affected
Empty `orig_ref_url` parameters	The `orig_ref_url` parameter on a Virtual Page View pixel is missing. This may be expected due to your integration or it may indicate an issue to investigate.	Insights
Invalid `orig_ref_url` parameters	The `orig_ref_url` parameter on a Virtual Page View pixel is present but invalid.	Insights

Events

Search events

Alert	What it means	Features affected
Search event volume	Search Event pixel events (search submissions) are firing less often than the previous 14-day period. Can also be triggered by expected traffic patterns.	Search ranking, Insights, A/B testing
Invalid `q` parameters	The `q` parameter (query searched) is missing or invalid. This primarily impacts testing for redirects.	Search ranking, Real-time segments, Insights, A/B testing

Add to Cart events

Alert	What it means	Features affected
Add to Cart event volume	Add to Cart event are firing less often than the previous 14 day period. Can also be triggered by expected traffic patterns.	Search ranking, Category ranking, 1:1 personalization, Real-time segments, Insights, A/B testing, Recommendations, Autosuggest
Product IDs in conversion page view missing from Add to Cart event	The `prod_id` parameter received in Conversion page views isn't showing up in a prior Add-to-Cart event, which is needed to connect a shopper's journey and properly attribute the data that supports ranking and other features.	1:1 personalization, Insights, A/B testing
Invalid `prod_id` parameters	The `prod_id` parameter received in Add-to-Cart events is missing or invalid, so that action can't count toward a product's performance data.	Search ranking, Category ranking, 1:1 personalization, Insights, A/B testing, Recommendations
Invalid `sku` parameters	The `sku` parameter (variant) received in Add-to-Cart events is missing or invalid, reducing variant-specific performance tracking. This may be expected if your business doesn't utilize variant SKUs	Search ranking, Category ranking, Insights

Suggest events

Alert	What it means	Features affected
Suggest event volume	Suggest events (autosuggest clicks) are firing less often than the previous 14-day period. Can also be triggered by expected traffic patterns.	Insights, A/B testing, Autosuggest
Invalid `q` parameters	The `q` parameter received in Suggest events (term suggestion a shopper clicked from autosuggest) is missing or invalid.	Insights, A/B testing, Autosuggest
Invalid `aq` parameters	The `aq` parameter received in Suggest events (text a shopper had typed before clicking a suggestion) is missing or invalid.	Insights, A/B testing, Autosuggest

Quick View events

Alert	What it means	Features affected
Quick View event volume	Quick View events are firing less often than the previous 14-day period. Can also be triggered by expected traffic patterns.	Insights, A/B testing
Invalid `prod_id` parameters	The `prod_id` parameter received in Quick View events is missing or invalid, so that action can't count toward a product's performance data.	Insights, A/B testing

Recommendations

These alerts apply to the widget pixels for Recommendations & Pathways. Each parameter alert can appear on the Widget view, Widget click and Widget add to cart pixels, as noted.

Alert	What it means	Features affected
Invalid `WRID` (API response ID) parameters	The `WRID` parameter (ties the action back to the specific recommendation API response) is missing or invalid.	Insights
Invalid `WTY` (widget type) parameters	The `WTY` parameter (identifies widget type) is missing or invalid.	Insights, Recommendations
Invalid `WID` (widget ID) parameters	The `WID` parameter (specific widget ID) is missing or invalid, so it can't be attributed to a specific widget.	Insights, Recommendations
Invalid `WQ` (widget query) parameters	The `WQ` parameter (specific query powering query-driven widgets) is missing or invalid.	Insights, Recommendations
Invalid `item_id` parameters	The `item_id` parameter is missing or invalid, so the click or add to cart can't count toward a product's performance data.	Insights, Recommendations
Invalid `SKU` (variant) parameters	The `SKU` parameter (identifies product variant) received in Widget Add-to-Cart events is missing or invalid.	Recommendations

Content

Alert	What it means	Features affected
Content page view volume	Content page views are firing less often than the previous 14-day period. It can also be triggered by expected traffic patterns.	Insights
Invalid `catalogs` parameter	The `catalogs` parameter received in Content page views is missing or invalid, so the page view can't be linked back to a catalog.	Insights

General

Alert	What it means	Features affected
Invalid `uid` in Cookie parameters	The `uid` value inside the `_br_uid_2` cookie parameter is missing or invalid, so that visitor gets treated as new every time. This breaks anything that depends on remembering who they are, including Personalization, Real Time Segments, and A/B Testing.	1:1 personalization, Real-time segments, Insights, A/B testing, Recommendations

Updated 20 days ago

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