External ID Limits

The following data types do not support record matching by external ID:

• Geolocation
• Text (Encrypted)
• Text Area
• Text Area (Long)
• Text Area (Rich)*

*Deployed image links in rich text area fields do not point from the destination org to the actual image because Salesforce assigns new IDs in the img tag.

Field Property Limits

Refer to the relevant Data Sets fields documentation for field type limitations:

• Data Set Editor: Field Specific Properties
• Next-Gen Data Set Editor: Field Specific Properties (New)

Unsupported Metadata Types

• ActionOverride
• EventRelayConfig
• Folder
• FolderShare
• GlobalPicklistValue
• LightningWebComponent
• Metadata