I'm hoping to find out if anyone else is having an issue with the 'customid' field, or if it's working fine for others here? We use the 'customid' field in our API calls to help keep track user activity. Lately though we've noticed a significant number of transactions being reported where the customid field is blank. I can see where previously it was probably less than 1% of all transactions, but starting around April 3rd we're seeing a huge increase and probably 50% of our transactions are missing the customid field now. I can see this at partner.ebay.com under the Reports -> Transaction Detail page, and also when fetching this same data from the Mediapartners API.
We didn't push out any releases that week and can't seem to find any links that are missing the customid field after a thorough search, so I'm wondering if the issue might be on eBay's side. The only clue or consistent thing I see is that the 'TrafficType' field for all of these transactions is 'Phone' so it doesn't seem to be affecting desktop users. Beyond that I can't seem to find much of anything else that's been helpful to debug, so I was hoping to see if anyone else could confirm whether theirs has been working properly the last couple of weeks?
