Uploading tracking with eBay File Exchange

[filtersfast]

Hello, we are developing a solution to automatically upload our tracking info to ebay using the eBay file exchange CSV format - and have the following question:  what would occur if the same order (transaction id and item ID) was uploaded twice throughout the day, with the same tracking info?

Would it cause any errors?

[dollybeauty]

If you upload a file in which a value is represented in two columns, you get a BAF.Error.9 error.

If you upload two files with the same value represented in each, the last will be ignored.

No worries, eBay's database does not try to update info, that is the same as what is already in the database.