Is it possible with SUPI importing products in XML format?

No, it isn’t. SUPI just allow importing data through CSV files.

Does SUPI allow the uploading of catalogs through excel/ CSV file with the same options, number of photos, sizes, as the same way as they are allowed at the manual uploading?

The tool doesn’t offer those functionalities, but its purpose is obtaining the ads list of an eBay’s seller which don’t comply the norm about the identifiers of the product (EAN, UPC, ISBN, MPN y/o marca) and make possible the specific update of the fields associated to the identifiers.

What cost does Supi have?

It doesn’t have any cost. SUPI is free.

What is SUPI? How can SUPI help me as eBay seller?

SUPI is an eBay’s tool that helps the sellers to:

Identifying what active products need to be updated, indicating the field (brand, MPN, GTIN).
Identifying finalised products that didn’t have an identifier.
Updating articles with product identifiers.

In which eBay categories is mandatory the inclusion of the product identifiers?

Baby
Beauty
Camera & photo
Home & garden
DVD & films
Video games & consoles
Sporting goods
Home: Major appliances
Business & industrial
TV, video & audio
Computer & tablets
Musical Instruments and Gear
Toys & hobbies
Books, magazines & comics
Motor: parts & accessories
Cell phones & accessories
Recorded music
Watches
Fashion
Stamps
Trips
Restaurant & catering

We recommend to search the details of each category in the eBay’s website.

Does this norm include the identifiers of second hand products?

No, it doesn’t. The norm should be just applicated to new products ads.

From when is mandatory the insertion of the product identifiers in eBay’s ads?

From 1st March 2016 is mandatory introducing the product identifiers in seller’s ads.

If my product doesn’t have EAN or equivalent, how do I indicate it on eBay’s system?

eBay allows the use of some default values when the EAN or MPN are unknown. In the case of Spain, the value that you should use is “No aplicable”.

How can I generate an EAN and its cost?

EAN standards are managed by GS1 (formerly known as International EAN) and UCC (Uniform Code Council). If you don’t have yet the EAN of your products, you can generate them on http://www.gs1es.org/ (we recommend you search some information about the associated costs).

Where can I find out the EAN of my product on the Internet?

There are websites and API’s external to eBay (http://www.programmableweb.com/api/open-eangtin-database, http://eandata.com, http://www.decept.co.uk/ean-lookup) where you can search EAN codes from titles or descriptions of products. However, they only contain subsets of the total of existing products, so the best alternative is asking for the information to the manufacturer.