The most common reason a sell GTT gets rejected is that your shares weren't authorized for sale when the trigger fired — you need DDPI/PoA active, or the day's EDIS done, for an equity sell order to go through.
Why does this happen specifically on sell?
Rupeezy checks your authorized sell quantity only when the GTT actually triggers and the order is sent to the exchange — not when you set up the GTT. If DDPI/PoA isn't active and you haven't completed EDIS for that day, the sell leg gets rejected with a message like "Failed to place order due to insufficient quantity authorization," even though the GTT itself looked fine when you created it.
Other reasons a sell GTT can get rejected
The same reasons any sell order can get rejected still apply once the trigger fires — insufficient margin, the stock hitting a circuit limit, or an exchange restriction on that scrip at that moment.
What can I do about it?
Keep DDPI/PoA active so this check always passes automatically, or make sure EDIS is completed for the day before your GTT is likely to trigger.
Things to keep in mind
- This check happens at trigger time, not creation time — a GTT that was fine when you set it up can still get rejected later if your authorization lapses.
- A rejected GTT order doesn't retry on its own — you'll need to place a new GTT if you still want the trade.