Synchronization of all parameters during the import (eBay → eBaymag)
When importing, eBaymag creates copies of your original listings on its side. Original listings on eBay will not be changed.

Synchronization of all information about items (eBay → eBaymag)

The original site is our ultimate source of actual information about your listings. Every time you revise a listing on the original eBay site, eBaymag downloads the changes and distributes them to listings on other sites. You can set whether this should happen automatically or manually:

We recommend enabling this option. Then, if you update quantities or change item title, description, price, or other item parameters in the original item on eBay, these changes will be automatically reflected in eBaymag listings within a few hours. If you want to force an update, you can use the "Update items content" or "Update quantities" button.

If you decide to disable this option, these updates won't happen automatically. After you make a change on the original site, you have to click the "Update items content" or "Update quantities" button (depending on what you change) for the changes to be propagated.

Regardless of your choice, please note that synchronizing items is one-way and only works from the original eBay site to eBaymag. If you change the price or other parameters of an item in eBaymag, they will change in all the listings created via eBaymag, but remain the same on the original site. Because of this, we recommend making all changes only on the original site. After every original listing revision or manual update from eBay to eBaymag, eBaymag listings data will be overwritten with current information from eBay.

Synchronization of quantities after selling (eBay → eBaymag, eBaymag → eBay) Quantities are synchronized across all sites. If you sold an item on one site, the changes will also appear in the eBaymag interface and on additional sites in a few minutes. Stock changes may be delayed for up to 2 hours when system is high load. We recommend changing your inventory manually only on the original eBay site.

Synchronization of item availability (eBay → eBaymag)
By default, if you delist an original listing, we also delist all its copies on additional sites and mark these items as archived in eBaymag. If you prefer not to archive delisted items and not to delist cross-listings, you can disable this behavior in the Settings:

To access the archive, click the filter button and select Archived. Lean more about archiving
If an item has run out of stock, but you haven’t delisted the listing on eBay (knowing that it will be replenished in the foreseeable future), we’ll also set the item quantity to “0” on additional sites, but won’t delist it. You can’t delist the original listing via eBaymag.

See also: How to quickly transfer your listings from one eBay site to another

Synchronization of shipping countries (eBaymag → eBay cross-listings)
eBaymag enforces the eBay duplicate listing policy which states that an item can only be sold into a given country on a single international eBay site. Automatic exclusions protect your account from being blocked and prevent the buyers’ search results from being filled with multiple copies of the same listing in different languages.
Exclusions are added automatically upon items being listed on new sites. For example, if you first list an item with international shipping on ebay.co.uk then list it on ebay.de via eBaymag, Germany will be added to the list of shipping exclusions on ebay.co.uk. But no exclusions will be created in your original listing.

Synchronization of shipping policies (eBaymag → eBay cross-listings)
Shipping policies (business policies) are downloaded from eBay when you import corresponding items. If you make changes to the shipping policy on eBaymag, they will apply to all listings on additional sites, but remain the same on the original one. To change the shipping policy everywhere, you'll need to change it on both the original eBay site and eBaymag (or delete your listings from eBaymag and import them again with updated policy).

Auctions syncronization is currently not working!
If you have imported items in Auction format to eBaymag, their quantity will not sync across the sites after selling. Also, auctions can only be listed on other sites in Good 'Til Cancelled format.