It looks like Amazon is making changes to how they structure their ASINs and offer content to shoppers. As it stands, this changes are unconfirmed and we’ve only heard from sellers on Amazon.com so far. If you have any more information then do please share it in the comments or email us.
The changes are regarding the bullet points that you can provide for your ASIN (Amazon Standard Identification Number.) Previously you were permitted to add bullets totalling 2k characters. It now seems that they will be limited to 500 characters. See the illustration above for the bullets in question.
It also seems that the ASINs affected are just new ones, rather than those currently in place.
This is clearly a move intended to make descriptions more pithy and user friendly. It doubtless also intended to make mobile description and product displays more attractive. It seems that you can still add additional bullets to the ASIN to make sure that you get your product details across.
We’d be keen to hear more if you have any additional information.