---
schema_version: "1"
id: 9be84be154ca6111c82ec137862b2988e46dc1228687ccc8358a9908f55bb612
title: High Data Volume Considerations for Salesforce Connect—OData 2.0 and 4.0 Adapters
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/platform/264-0-0/odata_considerations_high_data_volume.md
canonical_url: https://help.salesforce.com/s/articleView?id=platform.odata_considerations_high_data_volume.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 42f7316e4dfcd82fc76ce65a42a55730f8b0a0d4a70fac2931b520a25bf00061
description: If your org hits rate limits when accessing external objects, consider selecting the High Data Volume option on the associated external data sources. Doing so bypasses most rate limits, but some special behaviors and limitations apply.
products:
  - Salesforce Platform
  - Security
release: "264"
---
# High Data Volume Considerations for Salesforce Connect—OData 2.0 and 4.0 Adapters

If your org hits rate limits when accessing external objects, consider selecting the **High Data Volume** option on the associated external data sources. Doing so bypasses most rate limits, but some special behaviors and limitations apply.

### Required Editions

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small edition">
      <colgroup>
        <col>
      </colgroup>
      <tbody>
        <tr class="">
          <td class="slds-cell-wrap" style="vertical-align:top;">Available in: both Salesforce Classic and Lightning Experience (not for high-data-volume
            external objects)</td>

        </tr>
        <tr class="">
          <td class="slds-cell-wrap" style="vertical-align:top;">
            <p>Available in: <strong>Developer</strong> Edition</p>
            <p style="margin-bottom:0;">Available for an extra cost
              in: <strong>Enterprise</strong>, <strong>Performance</strong>, and <strong>Unlimited</strong>
              Editions</p>
          </td>

        </tr>
      </tbody>
    </table>

- The following features aren’t available for external objects that are associated with high-data-volume external data sources.
    
    - Access via Lightning Experience
    - Access via the Salesforce mobile app
    - Appearance in Recent Items lists
    - Record feeds
    - Reports and dashboards
    - Writable external objects
- Salesforce IDs aren’t assigned to external object records that are associated with high-data-volume external data sources.
- On record detail pages for external objects that are associated with high-data-volume external data sources, custom buttons, and links that call JavaScript aren’t supported.
- Salesforce Console in Salesforce Classic doesn’t support external objects that are associated with high-data-volume external data sources.
- CSRF protection for writable external objects isn’t available for high-data-volume external data sources.

#### See Also

- [_REST API Developer Guide_ : List Organization Limits](https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/dome_limits.htm)
- [CSRF Considerations for Salesforce Connect—OData 2.0 and 4.0 Adapters](https://help.salesforce.com/s/articleView?id=platform.odata_considerations_csrf.htm&release=264.0.0&type=5 "Understand the special behaviors, limitations, and recommendations for Cross-Site Request Forgery (CSRF) on OData external data sources.")
- [Define an External Data Source for Salesforce Connect—OData 2.0 or 4.0 Adapter](https://help.salesforce.com/s/articleView?id=platform.platform_connect_add_external_data_source.htm&release=264.0.0&type=5 "Connect your Salesforce org to data that’s stored in an external system, such as SAP® NetWeaver Gateway, Microsoft Dynamics® NAV, or IBM WebSphere®.")