Issue with Email Template for Table A generated from Table B

[Daisy_Ramirez]

Hello, I have a Workflow designed to email a Quote when an entry is made into the Activity table and so the workflow is based on the Activity table.The workflow is failing on the email template - seems its not recognizing the data:

Is the Start Expression correct here (Note: Reference = the Quote ID in the Activity table) I’ve tried [_THISROW].[Reference] but no luck - same error: