---
schema_version: "1"
id: 80eb460d9cc264169a64d6c163e0a08aa0504ed89e4602a1eece3c54e759dce4
title: Create Source Field Aliases
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/ind/264-0-0/create_source_field_aliases.md
canonical_url: https://help.salesforce.com/s/articleView?id=ind.create_source_field_aliases.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 7c17b836affa454468d3a17dea8221c0998a13b4ce1bf16e9817e1ca42d2a6d1
description: You can use only object fields that have field aliases as variables in expression sets. Create field aliases from Setup. When you create a field alias, you can group the alias under an existing object alias, or create an object alias and then add the field alias.
products:
  - Industry Solutions
  - Cross Cloud
release: "264"
---
# Create Source Field Aliases

You can use only object fields that have field aliases as variables in expression sets. Create field aliases from Setup. When you create a field alias, you can group the alias under an existing object alias, or create an object alias and then add the field alias.

### 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: Lightning Experience</td></tr><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;">Available in: <strong>Enterprise</strong>, <strong>Unlimited</strong>, and <strong>Developer</strong> Editions for clouds that have Business Rules Engine enabled</td></tr></tbody></table>

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small permission">
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          <col style="width:50%">
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        <thead class="slds-text-title_caps ">
          <tr class="">
            <th scope="colgroup" class="slds-cell-wrap" colspan="2" style="text-align:center;vertical-align:top;" id="d26136e69">User Permissions Needed</th>
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            <td data-label="User Permissions Needed" class="slds-cell-wrap" style="vertical-align:top;" headers="d26136e69 ">To create a field alias:</td>

            <td class="slds-cell-wrap" style="vertical-align:top;" headers="d26136e69 ">System Administrator</td>

          </tr>
          <tr class="">
            <td data-label="User Permissions Needed" class="slds-cell-wrap" style="vertical-align:top;" headers="d26136e69 ">To add a field alias as a variable in an expression set:</td>

            <td class="slds-cell-wrap" style="vertical-align:top;" headers="d26136e69 ">Rules Engine Designer</td>

          </tr>
          <tr class="">
            <td data-label="User Permissions Needed" class="slds-cell-wrap" style="vertical-align:top;" headers="d26136e69 ">To run an expression set that uses field aliases as variables:</td>

            <td class="slds-cell-wrap" style="vertical-align:top;" headers="d26136e69 ">Rules Engine Runtime</td>

          </tr>
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      </table>

1. From Setup, in the Quick Find box, enter Business Rules Engine, and then select **Business Rules Engine**.
2. Under Business Rules Engine, select **Object and Field Aliases**.
3. Click **New**.
4. Select a usage type.
5. Create a field alias for the field:
    
    - If the object has an object alias:
        1. Select **Existing Object Alias**.
        2. Select an object alias.
        3. For Source Field Name, select a field from the source object.
            
            Specify up to five levels of objects with the last value as an object field.
        4. Enter a field alias for the selected field.
    
    - If the object doesn't have an object alias:
        1. Select **New Object Alias**.
        2. Enter an alias for the object.
        3. For Source Field Name, from the source object for which you just defined the alias, select the field.
            
            Specify up to five levels of objects with the last value as an object field.
        4. Enter a field alias for the selected field.
6. Save your changes.