Duplicate Finder

Dear Andyanand,
I have sent you a guideline email also to you on 4th Aug. Perhaps you have not received that guideline email.
Actually deleting a duplicate SKU can be done in three ways.
1) Just replace the SKU value with null value. This is as if you go to the product edit page from admin and remove the SKU value from there and then save the product. Obviously after that in your store the duplicate SKUs will not remain because you have made duplicates with null values. In such case your variant as well as product will still remain there in store, because you have only made SKU value as null.
2) Delete the related variant, in such case your variant having that SKU will get deleted, but your product will still remain there in your store.
3) Delete the product itself.

When you try to remove a duplicate SKU one by one by clicking on individual buttons then the app will not delete variant or product but this will only replace the SKU value with null value. On the same SKU duplicates page you will see another button, "Delete all in bulk" button. If you click on that button then a popup window will open. On that popup window you will find more instructions and alternative ways to delete duplicates. Try to select an appropriate option from that popup window and then hit the "Start delete" button given on that popup.
If you want to delete duplicate products then my recommendation is you should use the "Duplicate titles" page instead of the duplicate SKU page of the app. After delete all duplicates from duplicate titles then check it from the duplicate SKU page.
Sometimes merchants may find a difficulty in understanding the way how app works, but I am always ready to help merchants. If you are getting any difficulty then you can reach me on my support email. I will help you personally to remove duplicates from your store.
Best wishes