Good afternoon guys here again, well I have finished developing a sales software and later I gave it to my client both for his business or for his personal use, everything is fine there, but there are things that I cannot understand correctly as: in the business, everything is correct without any problem of "data loss" and functional triggers, but now in the use of the client's personality that is on his laptop, he has problems with the following: an item box does not show the data as Normally it is due when a sale is eliminated, a trigger is not made to recover the lost amount, but the software in the business if everything mentioned is fulfilled. well I await your comments