Hi @Kris 

Thanks, your solution now also appears here at the bottom https://docs.databricks.com/aws/en/ldp/developer/ldp-python-ref-apply-changes-from-snapshot. In your code you use sequence_by, but this is not supported. So when running it, I get "An error occurred during the APPLY CHANGES FROM SNAPSHOT operation. Found 8 rows for key ...". I of course have multiple rows with different valid_from/valid_to for the same customer_id. Any ideas?