UPDATE: eBay community staff have added this to the pinned post of ongoing technical issues, along with a ticket number users should use when reporting to customer service.
Unable to create or edit promotions - When a seller tries they get the following error: "Unknown application error".
Reference ID: ALERT13624
Provide Seller ID:
eBay sellers are reporting receiving an "unknown application" error when trying to create or revise sales and promotions.
Nothing can be revised....I keep getting the error "unknown application error" when I try to add items to a markdown sale, extend it or try to add a new promotion. This is a business killer! PLEASE FIX THIS!
I'm trying to change the date on a coupon and getting this
"We ran into a problem, but we're working on it. Please try later."
Affected seller say they've tried different browsers and devices, but that hasn't resolved the issue.
I was able to replicate the error as well, receiving the unknown application message when selecting items for an order discount promotion.
I'm not sure if it's related, but I also noticed if you click the question mark in the upper right for the eBay Assistant while on any of the promotion creation pages, there is a page not found error.
I'll update as more information becomes available. If you've been impacted by this eBay Promotion Manager glitch, let us know in the comments below!