---
schema_version: "1"
id: 812d7fc2711ef90cd048ffa9b45354bd56968f31245fb17016a7e57b42a92d13
title: Considerations for Salesforce Connect—Custom Adapter
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/platform/264-0-0/apex_adapter_considerations.md
canonical_url: https://help.salesforce.com/s/articleView?id=platform.apex_adapter_considerations.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 3e9f0d42b48dfa5eab77c0094c86734bff5b447e43dc74aaf06d2ddf506de323
description: Understand the special behaviors, limits, and recommendations for using a Salesforce Connect custom adapter built with the Apex Connector Framework.
products:
  - Salesforce Platform
  - Security
release: "264"
---
# Considerations for Salesforce Connect—Custom Adapter

Understand the special behaviors, limits, and recommendations for using a Salesforce Connect custom adapter built with the Apex Connector Framework.

### 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>

- **[Apex Connector Framework Considerations for Salesforce Connect—Custom Adapter](https://help.salesforce.com/s/articleView?id=platform.apex_adapter_considerations_apex.htm&release=264.0.0&type=5)**  
    Understand the limits and considerations for creating a Salesforce Connect custom adapter with the Apex Connector Framework.
- **[High Data Volume Considerations for Salesforce Connect—Custom Adapters](https://help.salesforce.com/s/articleView?id=platform.apex_considerations_high_data_volume.htm&release=264.0.0&type=5)**  
    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.
- **[Writable External Objects Considerations for Salesforce Connect—Custom Adapters](https://help.salesforce.com/s/articleView?id=platform.apex_considerations_writable_external_objects.htm&release=264.0.0&type=5)**  
    Some special behaviors and limitations affect writable external objects that are associated with custom adapters for Salesforce Connect.
- **[Sync Considerations for Salesforce Connect—Custom Adapter](https://help.salesforce.com/s/articleView?id=platform.apex_considerations_sync.htm&release=264.0.0&type=5)**  
    When you validate and sync an external data source of type `Salesforce Connect: Custom`, some special behaviors and limitations apply.

#### See Also

- [Salesforce Platform Features Supported by Salesforce Connect](https://help.salesforce.com/s/articleView?id=platform.platform_connect_considerations.htm&release=264.0.0&type=5 "Salesforce Connect provides seamless integration with the Salesforce Platform and enables users to view, search, and modify external object data.")