Hello Ninaad Global,

Here are three steps you can follow to address the issue:

1. Enforce Sign-in Before Adding to Cart: Configure your settings to require users to sign in before they can add items to the cart. This will reduce the number of guest quotations.
2. Cleanup Script: Implement a scheduled action to automatically delete or archive quotations with no products and guest users that are older than a certain time period.
3. Bot Protection: Add CAPTCHA or other anti-bot measures to your website to prevent bots from adding items to the cart.

Following these steps should help resolve the issue.

Thanks & Regards,

Name : Yahoo Baba

Email:  yahoobaba077@gmail.com