Based on Solace topic taxonomy best practices, when you publish to a topic like sale/124, ideally "124" would be the id of the store. If you want to have this event applicable for multiple stores, then I would suggest a different topic taxonomy approach like a region identifier or some other common property which is shared amongst the stores 1,2 and 4.

This will allow each store to subscribe to the specific events they are interested in via queues.

Hope this helps.