To help ensure that your records and reports are accurate, check the field mapping when you activate a data integration rule. Some Lightning Data rules let you keep or overwrite field values when new data is available.
Required Editions
| Available in: Professional, Enterprise, Performance, and Unlimited Editions |
| User Permissions Needed | |
|---|---|
| To edit field mapping: | Customize Application |
The data service provider determines a rule’s default field mapping.
- In Setup, use the Quick Find box to find Data Integration Rules. Select the rule you want to look at, and then click Edit Field Mapping.
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On the Match tab, look at the fields used to match your records to fields in the data
service. If a data service field isn’t correctly mapped to the standard object, select a
different standard object field.
For example, suppose that the data service field City is mapped to the account field Billing City, but you use Shipping City in account addresses. Change Billing City to Shipping City.

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If the rule can update fields, the settings include an Update tab. Click
Update and look at the fields that can be updated with new data
when the rule runs. Check that each data service field is correctly mapped to a Salesforce
standard object field. If needed, select different standard object fields and add or
remove fields to update.
You can add, remove, or change up to 12 mappings at a time before saving.Rules that support data updates determine a record’s data status using the standard object field values in the update mapping. The data service fields used to match records and the fields used to update them can differ. -
If you use a Lightning Data rule that updates fields via custom object lookups, you can
update a field automatically when new data is available. First enable history tracking for
the field, and then select Overwrite.
You can't overwrite data from company info or geo rules.