In the past few years, Amazon has gradually made inventory storage update. Firstly, in the summer of 2020, FBA sellers faced a new limitation, making it difficult to launch new products on Amazon. This limitation was the ASIN-level quantity that was limited to just 200 units.
Amazon implemented a new change after that. In April 2021, the ASIN-level limitation was removed, and Amazon introduced storage-type level inventory limitations. The available inventory storage space is six different storage types: apparel, aerosol, footwear, flammable, oversize, standard-size
Recently, from the first of January 2022, Amazon’s IPI (Inventory Performance Index) threshold for storage limits becomes 400 (previously 500). Although as a part of its strategy, Amazon expands its storage capacity. The main intention of this restriction is to prevent large shipments during the holiday season because it consumes storage space.