eBay:
Technical Reference
The Ship To Address: Where Does It Come From?
The Ship To address for eBay sales comes from the eBay check out process. Every transaction (e.g. every eBay sale) has a Ship To address. For buyers who purchase using PayPal, this is the PayPal Ship To address that is part of the buyer's PayPal profile. If PayPal is not used for payment, the Ship To address typically comes from the buyer's eBay profile.
Where is the Tracking Number within eBay?
The tracking number is automatically saved into eBay every time you ship. By default, it is saved into the sale "transaction" where both the buyer and the seller can see it.
Buyers can select: MyeBay -> Won list, select the item and click on the Total Price. This will take you to the View Order Details page. (Alternately, locate the item in the Won list, click on the title and then click View Order Details on the View Item page.)
Buyer View of Tracking Number
Sellers: Open the item transaction in MyeBay, then select View Order Details:

Then click on the Shipped link to display the tracking number (the tracking number can be clicked on to track it):

ShipRush Access to an eBay Account:
During the installation of ShipRush, the user is prompted for their eBay userid and password. The eBay password is not stored in ShipRush, nor is it sent to Z-Firm or the shipping carrier. At no time does the eBay password touch any ShipRush software (the user is prompted for this information in a web browser). Rather, the sees an eBay web page that prompts the user to allow ShipRush to access their eBay information.
If the user clicks the Allow button, ShipRush is issued an access token that allows ShipRush to access the user's eBay account.
This token can, in theory, be used to list items and perform various functions via the eBay API. ShipRush only queries for sold items, and updates the shipped status of sold items. ShipRush will never, under any circumstances, do anything else within an eBay account.
If a user wants to see what applications have access to their eBay account, access tokens can be listed and revoked in MyeBay. Log in to MyeBay and go to My Account | Preferences. Scroll down to Third Party Authorizations and click Show.
All access tokens are now listed, and a Revoke option is available:

If ShipRush Requests an eBay Userid / Password Again (after some weeks or months of use)
This means that the access token has either expired or been revoked. Simply re enter your eBay Userid and Password and a new token will be issued to ShipRush. (ShipRush never stores your eBay password.)
If Concerned About Unauthorized eBay Account Access
Change your eBay password frequently (at least monthly). Use long, strong passwords (letters and numbers, at least 12 characters long).