2, side knot, leave a circle at the knot, you can hang a matching pendant to cover it.
3. If the bag has a lid, you can wrap the chain around the lid, and the length of the chain will be short.
4. buy a chain breaker, which is on a treasure, and shorten the chain yourself.
5, find a professional to adjust, you can go to the place where you repair the bag or have a rest and let them help you shorten it.