---
title: "Combined collection"
slug: "combined-collection"
updated: 2024-05-14T13:55:43Z
published: 2024-05-14T13:55:43Z
canonical: "help.mozenda.com/combined-collection"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.mozenda.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Combined collection

*Collections* are tables of data. Each agent has a collection where it saves data. You can create a standard collection that contains data that you upload or harvest, or a combined collection that combines the data from multiple agent collections.

### Create a combined collection

In the Web Console:

1. Select **Collections**.
2. Select **New collection**.
3. Select **From existing collections**.
4. Name your combined collection.
5. Select the agent(s) to combine their dataset.
6. Select **SAVE**.
7. A new window displays. Select and add the fields in the newly combined collection.
8. Select the field > **ADD FIELD**  to add the fields in the newly combined collection.
9. Select **DONE** when finished.

          
          

Your new collection creation depends on the size of the collections that are being combined.

### Rebuild a combined collection

A combined collection combines the data from multiple agent collections. The data from all agents must be added for the combined collection to be created. Here are some things to keep in mind.

          
          

The combined collection will only add data from a completed agent run job. Once the last job finishes, that triggers a response to update the combined collection with the final data. A combined collection can be rebuilt manually or through the API call collections.rebuild.

#### Rebuild manually:

In the Web Console:

1. Select **Collections**
2. Select the specific combined collection.
3. Select ![Combined collection.PNG](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/Combined%20collection.PNG)
4. Select **ReBuild**.