## Reviewing Details

You can use the _Aggregation details_ page to review and manage the Aggregation set up. **To review Aggregation details:**

1. In the **Metering** section, select **Aggregations**:

2. If you want to review the details of a Product Aggregation, search or filter the page by **Product**.
3. Select the hotlink text of the **Aggregation**. The **Aggregation details** page opens:

4. On this page, you can:
   - Read-off the Aggregation’s **Name** and **Code**.
   - Use the hotlink text to open the details page of the **Meter** whose Data or Derived Field the Aggregation targets.
   - Read-off:
     - The method the **Aggregation** uses - such as **Sum**, **Minimum**, **Latest**, **Mean**, and so on.
     - The **Unit** configured for the Aggregation, which will be used on Bill line items to indicate what the charge is for.
     - The Aggregation’s **ID** and **Copy** this to your clipboard.
   - Check the audit data to see who **Created** and who **Last modified** the Aggregation.

**Note:** If the Aggregation is configured to use a **Custom SQL** method, then an additional **SQL** section is shown under **Aggregation details** showing the Custom SQL query used which you can **Copy** to your Clipboard.

## Reviewing Metadata

If you scroll down the **Aggregation details** page, you can review Aggregation metadata:**Custom fields**. Any Custom fields created for the Aggregation entity are listed, and you can **Copy** the _String_ or _Number_ value of a Custom Field to your clipboard:

- If the fields have been created only at Organizational-level, then these values will be shown:
- If the fields have also been created for an individual Aggregation, then the values configured for those created at Organizational-level are struck out indicating clearly that the individual Aggregation’s values will be used:

**External mappings**. Any External mappings set up for the Aggregation are listed:

- The **External system** and **External table** mapped to are shown - such as **NetSuite - Item** in the above example. The **External entity ID** mapped to is also shown.
- If a listed External mapping is linked to an Integration, under **Linked integration** a hotlink text will be shown which you can use to open the Integration.
- Under **Actions**, you can edit or delete the External mapping.
- If the Aggregation has multiple External mappings created for it, you can use _Search external mappings_ to search by **External table** and **External entity ID** and filter the list.
- You can commence a workflow to **Create external mapping** for the Aggregation directly - see [Creating and Managing External Mappings for Accounts](https://docs.m3ter.com/guides/end-customer-accounts/creating-and-managing-external-mappings-for-accounts) for an example.

**Integration runs**. If you’ve set up an integration that synchronizes the Aggregation with an external system, the date/time and status of the **Latest** integration run are shown. You can use a text hotlink to open details of this latest run or **View all runs**. See [Reviewing Integration Run Details](https://docs.m3ter.com/guides/integrations/setting-up-integrations/reviewing-integration-run-details).