Initially, after connecting your A2X to Amazon, it can take 3-12 hours for settlements to appear.
After your initial setup, A2X will check your Amazon account for new settlement files every day. As soon as it finds them, they are imported to A2X.
If you have a new settlement file in Seller Central that is not appearing in A2X after 2 days, and you have confirmed none of the issues mentioned in the article titled 'Why are some of my settlement files missing?' apply, then there could be a problem with the Amazon connection and you should contact us.