When you select 'Invoice', you will be prompted for
Invoice number: Enter here the next invoice number you want to use. PrintSum assigns
a
sequential 6 digit invoice number to each invoice raised. The figure suggested here is the next
invoice number unused by PrintSum, but you may increase this to allow the inclusion of manual
invoices into the numbering sequence. Several different jobs may be included in the same invoice
Invoice date: If the "Specify date of an invoice' flag is ticked in the Options tab
of System
Configuration, you can override the Invoice date when the invoice is printed. This should only be
used in exceptional circumstances, and for this reason the flag should normally be kept un-ticked.
You should not allow casual use of this facility. The tax inspectors tend to get a bit excited by its
reckless use!
Pressing OK marks the job as 'Invoiced', whether or not it has been fully delivered.
Note that you can't invoice a job that you haven't yet delivered any part of.
