It sounds like you inadvertently changed the index structure or deleted it. There have always been default indexes, and Microsoft's tuning advice is always to a

It sounds like you inadvertently changed the index structure or deleted it. There have always been default indexes, and Microsoft's tuning advice is always to add special case indexes to the wildcard index they provision. If you know your data model well and want to improve write performance (RUs), you can delete the wildcard index. That's how the indexing policy has worked since the product launched. https://docs.microsoft.com/en-us/azure/cosmos-db/how-to-manage-indexing-policy https://docs.microsoft.com/en-us/azure/cosmos-db/how-to-mana...