---
sourceDocument: Brazil Platform Analytics
sourceDocumentLink: https://www.servicenow.com/docs/r/now-intelligence

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    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Platform Analytics

ft:clusterId :

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workflow :

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---

# Bucket group mappings and calculated fields

# Bucket groups and calculated fields in Data Snapshots {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Bucket groups let you use numeric data as breakdowns. Calculated fields show numeric data derived from date fields. Map bucket groups to either numeric or calculated fields on Data snapshots indicator sources to use those fields
as breakdowns.  
To filter indicator scores by the values of a field, the field must have a discrete set of possible values. Numeric data is continuous, so numeric fields on their own cannot be used to filter indicators. However, if you can split numeric field values into buckets, you can use the buckets to filter indicators. Do so in two steps:

1. Define a group of buckets to split the expected range of the numeric field values into meaningful sets. These [bucket groups](https://www.servicenow.com/docs/SAYEkH1d7Qjsj7I4aT4WVg#gloss-bucket-group "Gathers continuous data into discrete groups when there is no table field that can serve as breakdown elements. For example, a bucket group might take differences between timestamps and divide them up into hourly periods.") are a classic Performance Analytics feature.
2. Map the numeric field to the bucket group.
{#ds-bucket-groups-calculated-fields__ol_tpw_dpk_hkc}

Calculated fields are a special type of numeric field. They show the difference between two date/time fields on a Data snapshots source table. For example, a calculated field on the Created and Updated fields shows the time
difference between when a record was created and the last update made to it. To use a calculated field as a filter, first find or create a group of buckets that divide the range of values of that field into sets. Then map the
field to that bucket group.

Calculated fields are active on all instances. You don't have to activate anything to use
them.

## Limitations {#ds-bucket-groups-calculated-fields__section_uyk_cp4_zjc}

* Calculated fields support only date/time fields.
* Calculated fields do not support score_start or score_end.
* You can visualize calculated fields only in KPI Details. You cannot show them on data visualizations and thus not on dashboards.
* You can apply a calculated field as a breakdown or aggregate on a Data snapshots indicator only if the field is on the source table for that indicator. The Data snapshots source also must track the fields in the calculated field's formula.
{#ds-bucket-groups-calculated-fields__ul_yqz_cp4_zjc}
* **[Create a calculated field for a Data snapshots source](https://www.servicenow.com/docs/hN_J2sPBSzCmk3lMXl8tQA)**   
  Show the length of time that has passed between two date/time fields on a Data snapshots source table. For example, calculate Age as the difference between Created and Updated. Use this value as an aggregate field on an indicator or in a bucket group mapping.
* **[Map a bucket group to a Data snapshots source field](https://www.servicenow.com/docs/iJ56nNJAv1dHAGMQtd1ogw)**   
  To be able to filter Data snapshots scores by a numeric field on the source table, map a bucket group to that field. The bucket group splits that field into value ranges.

**Related concepts**   

* [Bucket groups for breakdown sources](https://www.servicenow.com/docs/7OIuZPdkIMt0ipvB1_aJzw#c_BucketGroups "Bucket groups are used to recategorize data so it can be used as a breakdown, for example by grouping a range of values into discrete buckets.")