v5.6.4

5.6.4 (2026-04-16)

Fixes:

• Fixed upsert matching for relationship external IDs such as Account__r.Name when the source is csvfile and the target org returns the parent relationship as a nested Salesforce API object. Existing target child records are now matched and updated instead of being treated as new inserts.

See the related articles:

• ScriptObject Object - externalId
• Composite External Id Keys