A sales order was created, printed out, given to the delivery driver to have signed when material was dropped off, brought it back to complete the invoice process and the system will not pull it up.  We clicked on the sales order and it pulls up a blank sales order with another number.  We try to recreate and it said it was a duplicate and would not allow it.  If you go into the Customer Sales Order History Report, it will pull up the Sales Order.  We just did a data verification and integrity fix.  Nothing was found and it did not correct this issue or a missing entry from 2019.  What is wrong that it causes this to happen monthly!!!!  And why is it so difficult to post anything in here!!!