The Idea is really Simple.
Allow us to Set Buy Orders on Trade Posts.
This Idea has come up several times in the Forums as well already. And its clearly a Needed Feature.

Due to the Highly Limited Storage Space of Trade Posts. You cannot Sell Large Quantities of Items there.
And for the Reason of Real Life. Finding someone Online who Sells what you Need is often not really going to happen.

Simple Mechanic. Allow us to Set a Buy Order on the Trading Post which has a Minimum Quality Requirement and a Set Price per Piece.
People can then Fill the Order on a per Piece Basis.

The Initiator of the Buy Order has 5 Game Days (so about 25 Hours) to Claim the Items from the Trade Post.
After that the Items will be Moved to the Storage of the Trade Post and will thus cost Money for Storage.


The People who have things to Sell are often better Equipped and have more Options for Traveling.
Moreover they often have enough Stock to Serve several Buyers.
While those Buy things are mostly those who do not have such things and thus Require to Buy them.
Moreover the Seller then can Fill Demand by Producing things.
It would Greatly Improve Trade. And make it much easier to actually Play this Game. Because then you could just Set a Buy Order for the Things you need.
Instead of Running around Hoping that anyone who by Chance has what you need is Online.