Trade Depot items not selling

What are the items and how much are you asking for them? Some products will sell regardless of whether you're asking the maximum price whereas others may not. The quantity you're selling in as well can have an effect - selling one storage camera at maximum price shifts a lot quicker than selling 7 storage cameras at maximum price as one job lot.

Have you tried sticking up other items at a relatively low price to garner interest in your trade depot, e.g. asking for 1 or 2 simoleons per item. I've done this in the past and found that the items that weren't selling were bought at the same time as the really cheap items. 

Also finished items like chairs, haammers,nails etc tend to sell faster and you can usually ask max price for them. Materials like steel and wood and others that are cheap and fast to produce tend to sell slower. I mass produce them and when my storage is full I put them up for sale in groups of 10 but at a lower price. I find they may stay there for a day or two but what I see happen alot is when I put finished items whoever is buying them may see the materials at a cheap price and buy them also.

Many thanks for your help and advice. The items have sold now :-)

Items not selling when previously they sold within minutes, this has happened to me a couple days ago.

My prices were very cheap, so i know that was not the issue, they eventually sold.

I believe it's a glitch in the software, somehow they just don't get posted out there.