---
schema_version: "1"
id: 727c0ee16ab6de5dfbd37fe4a4b5ed59895f94fb385c3ed39b2f627fd7e8cccc
title: Account Engagement Limits
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mcae_limits.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mcae_limits.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: e30fbe98b4b70deb1eb75c35a19658eb0cfdaca60f7d85214d2665e35fb51f46
description: Understand the maximum usage recommendations and limits in Marketing Cloud Account Engagement. These recommendations are intended to optimize performance and avoid service disruptions. Some of these guidelines trigger warnings or exceptions if you exceed them, while others are suggestions for maintaining high performance.
products:
  - Marketing
  - Marketing Cloud Account Engagement
release: "264"
---
# Account Engagement Limits

Understand the maximum usage recommendations and limits in Marketing Cloud Account Engagement. These recommendations are intended to optimize performance and avoid service disruptions. Some of these guidelines trigger warnings or exceptions if you exceed them, while others are suggestions for maintaining high performance.

![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-pardot-264-0-0-production-enus/5fef4d4f-9a34-45c6-8cd3-e3200b9eeba8/images/icon_note.png)

Note You can use the Optimizer feature to monitor several of these limits and guidelines and to view best practices for improving performance. To access Optimizer, go to **Account Settings** | **Optimizer**

## Engagement Studio Program Limits

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small ">
        <colgroup>
          <col style="width:33.33333333333333%">
          <col style="width:33.33333333333333%">
          <col style="width:33.33333333333333%">
        </colgroup>
        <thead class="slds-text-title_caps ">
          <tr class="">
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e57">Resource</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e60">Limit</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e63">Additional Notes</th>
          </tr>
        </thead>
        <tbody>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e57 ">Maximum number of Engagement Studio programs</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e60 ">
              <p>The limit is based on your Edition.</p>
              <ul>
                <li>Growth: 20 running programs</li>

                <li>Plus: 100 running programs</li>

                <li>Advanced: 200 running programs</li>

                <li>Premium: 200 running programs</li>

              </ul>
            </td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e63 ">Programs that aren’t currently running don’t count toward this limit.</td>

          </tr>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e57 ">Maximum number of repeating Engagement Studio programs</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e60 ">
              <p>The limit is based on your Edition.</p>
              <ul>
                <li>Growth: 10 repeating programs</li>

                <li>Plus: 10 repeating programs</li>

                <li>Advanced: 10 repeating programs</li>

                <li>Premium: 15 repeating programs</li>

              </ul>
            </td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e63 ">Repeating programs that aren’t currently running don’t count toward this
              limit.</td>

          </tr>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e57 ">Maximum number of Engagement Studio program members</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e60 ">
              <p>The limit is based on your Edition.</p>
              <ul>
                <li>Growth: 750,000 members</li>

                <li>Plus: 750,000 members</li>

                <li>Advanced: 750,000 members</li>

                <li>Premium: 1,500,000 members</li>

              </ul>
            </td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e63 ">This limit only applies at the beginning of a program. After the program has started,
              you can add members beyond these limits.</td>

          </tr>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e57 ">Maximum number of program steps</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e60 ">300 steps</td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e63 ">―</td>

          </tr>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e57 ">Maximum number of copied steps in a program</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e60 ">10 steps</td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e63 ">―</td>

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

## Automation and List Limits

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small ">
        <colgroup>
          <col style="width:33.33333333333333%">
          <col style="width:33.33333333333333%">
          <col style="width:33.33333333333333%">
        </colgroup>
        <thead class="slds-text-title_caps ">
          <tr class="">
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e207">Resource</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e210">Limit</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e213">Additional Notes</th>
          </tr>
        </thead>
        <tbody>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e207 ">Maximum number of Automation Rules</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e210 ">
              <p>The limit is based on your Edition.</p>
              <ul>
                <li>Growth: 50 rules</li>

                <li>Plus: 100 rules</li>

                <li>Advanced: 150 rules</li>

                <li>Premium: 200 rules</li>

              </ul>
            </td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e213 ">Automation Rules that aren’t currently running don’t count toward this limit.</td>

          </tr>

        </tbody>
      </table>

## Database Limits

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small ">
        <colgroup>
          <col style="width:25%">
          <col style="width:25%">
          <col style="width:50%">
        </colgroup>
        <thead class="slds-text-title_caps ">
          <tr class="">
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e273">Resource</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e276">Limit</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e279">Additional Notes</th>
          </tr>
        </thead>
        <tbody>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e273 ">Maximum number of mailable prospects</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e276 ">The limit is based on your Edition plus additional contact blocks purchased.</td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e279 ">
              <p>This limit is based on the sum of all mailable prospects across all of your business
                units. Unsubscribed prospects aren’t counted toward this limit.</p>
              <p style="margin-bottom:0;">Contact your Account Executive for more information about purchasing additional contact
                blocks.</p>
            </td>

          </tr>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e273 ">Maximum number of custom fields mapped to Salesforce objects</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e276 ">800 custom fields</td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e279 ">We recommend to map fewer than 150 prospect fields across Salesforce leads and
              contacts. We also recommend to map fewer than 125 fields across Account Engagement accounts
              and opportunities.</td>

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

## File Limits

  
| Resource | Limit | Additional Notes |
| --- | --- | --- |
| Hosted file size | 50 MB | ― |

## Form Limits

  
| Resource | Limit | Additional Notes |
| --- | --- | --- |
| Maximum number of characters in text and text area fields on prospect records | 65,536 characters | Specific fields allow fewer characters. See [Default Prospect Field Character Limits](https://help.salesforce.com/s/articleView?id=mktg.pardot_fields_default_character_limits.htm&release=264.0.0&type=5 "Default prospect fields use character limits, measured in bytes. Most simple letters use one byte each, but more complex pictographs use more bytes per character. As such, the number of characters doesn’t always match the number of bytes used, but can be a helpful guideline."). |

## API Limits

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small ">
        <colgroup>
          <col style="width:25%">
          <col style="width:25%">
          <col style="width:50%">
        </colgroup>
        <thead class="slds-text-title_caps ">
          <tr class="">
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e443">Resource</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e446">Limit</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e449">Additional Notes</th>
          </tr>
        </thead>
        <tbody>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e443 ">Maximum number of API requests</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e446 ">
              <p>The maximum number of API requests is based on your Edition.</p>
              <ul>
                <li>Growth: 25,000 requests per day</li>

                <li>Plus: 50,000 requests per day</li>

                <li>Advanced: 100,000 requests per day</li>

                <li>Premium: 100,000 requests per day</li>

              </ul>
            </td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e449 ">Account Engagement uses the time zone setting for your business unit to determine when
              a day begins and ends.</td>

          </tr>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e443 ">Maximum number of concurrent API requests</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e446 ">5 concurrent requests</td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e449 ">In some cases, this limit can be increased. For more information, contact your account
              executive.</td>

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

## Import and Export Limits

  
| Resource | Limit | Additional Notes |
| --- | --- | --- |
| Import file size | 100 MB | ― |
| Maximum number of Account Engagement users that can be imported | 50 users | ― |
| Maximum number of prospects that can be imported using the API | 2 million prospects per day | Account Engagement uses the time zone setting for your business unit to determine when a day begins and ends. |
| Maximum number of prospects that can be exported | 25 million prospects per day | In some large enterprise accounts, you can export up to 50 million prospects per day. For more information, contact your account executive. |

## Business Unit Limits

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small ">
        <colgroup>
          <col style="width:25%">
          <col style="width:25%">
          <col style="width:50%">
        </colgroup>
        <thead class="slds-text-title_caps ">
          <tr class="">
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e605">Resource</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e608">Limit</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d46435e611">Additional Notes</th>
          </tr>
        </thead>
        <tbody>
          <tr class="">
            <td data-label="Resource" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e605 ">Number of included business units</td>

            <td data-label="Limit" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e608 ">
              <p>The number of included business units is based on your Edition.</p>
              <ul>
                <li>Growth: 0</li>

                <li>Plus: 0</li>

                <li>Advanced: 2</li>

                <li>Premium: 5</li>

              </ul>
            </td>

            <td data-label="Additional Notes" class="slds-cell-wrap" style="vertical-align:top;" headers="d46435e611 ">
              <p style="margin-bottom:0;">You can purchase additional business units, up to a total of 25. For more information,
                contact your account executive.</p>
            </td>

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