hey
are you just looking for XML to delete/add variation listing of your particular asin, or you need a program that is to be designed through MWS API?
I do have extensive mws api experience, from creating a listing in multiple marketplaces including US UK CA JP ES FR IT and DE, to automating multiple mws apps
Following are few of the designed apps:
1. Amazon Customer Identifier from Listing's Product Rating
2. Search Keyword Ranking of your Listings
3. Finding Product Reviewer from your Customers of your Listings
4. Reorder Management Reports
5. Scrapping Top Sellers to analyze selling in particular category
6. Emailing Amazon Sellers' customer for Product Reviews
7. Tracking Questions on your Listings
8. Consolidated sales report of all Amazon marketplaces, including Japan.
9. Scrapping Listings for Product Reviews, Prices, Shipping Cost, Discount Price, New and Used no of Sellers available etc.
10. Refund calculator (To be refunded to Sellers by Amazon)
Hope to hear from you soon
Thanks