Why when I use retail mode the pluginAt method does not execute and other functions ?

When I use the retail mode it does not execute me when invoicing in the pluginAT of the method = "postReceipt" method and the ListenToExit send in the post additional values in the invoice. If anyone has any solution ?

Thank you.

PluginAt:

@PluginAt(pluginClass=ReceiptPosService.class, method="postReceipt", where=POSITION.BEFORE)
public void postReceiptBefore(Object proxy, Object[] args, StackTraceElement callStack) throws BreakExecutionException