---
alias: user-guide-business-workflow-task-aggregate-collection
render_macros: false
description: "Reduces supplied entity or record fields to a scalar or stable distinct collection without changing source objects."
---

# Aggregate Collection Values

Reduces supplied entity or record fields to a scalar or stable distinct collection without changing source objects.

![Screenshot of a Business Workflow summing Quantity from query rows and displaying the total in operator feedback.](images/business-workflow-task-aggregate-collection.png)

## Inputs

Set `Collection`, `Operation`, `Field`, `IgnoreNulls` in the task details. Use the value editor to select compatible results from earlier tasks.

## Outputs

Use `Result`, `HasValue` in subsequent tasks.

??? example "Aggregate Collection Values"

    Connect query rows, choose Sum, select field `Quantity`, and choose whether null values are ignored. Use the aggregate result in a condition or message.