Hi- I'm trying to rack my memory for how this was resolved but essentially, the COGS account was being credited in that way because I was building assemblies that contained non-inventory items. We switched to Enterprise desktop 3 years ago and when we made the switch, I removed all non-inventory items from my assemblies and I have not seen this problem since. Internally we found a different way to still account for these items without needing to use QB as a tracker for them, so to speak. So I cannot remember what specific mechanism was happening that was causing this/why but it was something to do with using non-inventory items in a way they should not have been used in building assemblies. Which kind of makes sense because I'm using a designated "non-inventory" item, as "inventory", when it's not... And the COGS account was adjusting for this fact in the background, trying to make sense of something that doesn't make sense in the program. Hope that helps!