How to add new row if data not exists. If already please skip

Hello everyone,
I have a professional inquiry and would greatly appreciate your assistance. I am currently utilizing RSS Node to populate data into a Google Sheet. However, I need to ensure that this data does not already exist in the previous version of the Google Sheet. Despite my attempts, I have been unsuccessful in achieving this. The attached image provides an example. I kindly request your guidance and expertise. Thank you.

Welcome to the Make community!

Before you add a row, you got to check whether it exists right? Simply use a search module to do that.

What are the available search modules in Google Sheets, and which one do you think will best suit your requirements?

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