Learn more about Eulerian's Expand Limit feature
In web analytics, cardinality refers to the number of unique values assigned to a dimension.
Some data types like unique identifiers can result in very high cardinality .
Your reports and explorations may then load more slowly, or even not display correctly in cases of extreme cardinality.
Eulerian provides a feature called “Expand Limit” to handle these high cardinality situations.
This feature allows you to set daily caps on the number of new entries allowed in a dimension to protect the data collection infrastructure.
By using “Expand Limit” you can limit the number of new values recorded daily, thus avoiding accumulating excess unique values that could harm the performance of your analyses.
What dimensions are affected by the Expand Limit feature?
Action
80
Creative
100
Location
100
Publisher
100
Page
10000
Page Label 1
500
Page Label 2
500
Page Label 3
500
Page Label 4
500
Page Label 5
500
Action label 1
500
Action label 2
500
Action label 3
500
Action label 4
500
Action label 5
500
How do I know if I'm exceeding my daily limits?
Log in to your Eulerian account and open the report "Dynamic Injection Limits
Path : Collection > Site Options > Dynamic Injection Limits tab
How to track volume trends in these dimensions?
Click on the 
icon to the right of the dimension you want to analyze and a trend report will open with the daily volumes of entries and rejections.
icon to the right of the dimension you want to analyze and a trend report will open with the daily volumes of entries and rejections.
Is it possible to change my daily limits?
Yes! You can decrease or increase the daily limits of each dimension.
Contact our Customer Success team: am@eulerian.com
How do I change my daily limits?
Click the 
icon to the right of the dimension you want to edit to open the editing screen.
icon to the right of the dimension you want to edit to open the editing screen.
Field Description
Accepted Volume / Day: Number of new daily values accepted (valid) for collection for the parameter in question.
Blocking rule (via regex): If this field is completed and the pattern defines match the value of the data, then the data is considered invalid for collection.
Allowed rule (via regex): If this field is completed and the pattern defines matches the value of the data, then the data is considered valid for collection.
The collection engine will then "skip" the "Blocking rule" step but will do a second check related to volumes.
If the new entry exceeds the maximum daily new entry cap, then the data will be considered invalid for collection.
If the new entry is below the ceiling, then the data will be considered valid and will be collected.