Strictly speaking, it cannot be modified, because it is easy to cause problems.

However, in actual work, many people do not abide by this regulation, that is, alter the outbound order, especially when it is inconvenient for the warehouse to be far away from the order staff. When this happens, here's what I ask them to do: changes must be made in three copies at the same time, and the warehouse manager must sign the modification to show responsibility. After the financial staff receives the return copy of the outgoing order, they promptly adjust the accounts according to the changed outgoing order and keep it in sync so that the accounting accounts are consistent with the warehouse's custody accounts.