question

According to the documents, Trading API calls support a dedup mechanism with `` and ``, as far as I understand this also applies to platform notifications. But in fact the `correlationId` carried by notification payloads are somewhat sequential and looks like eBay internal numbering, regardless of what `` that triggered this notification. According to our recent findings, over 40% of notifications are duplicated and we are wasting resources to handle them. This is really frustrating.