Invoice number/identifier
                                            
                                            snoopy
                                            
                                            
                                                
                                            
                                            
                                            
                                            
                                                
                                                
                                                
                                                
                                                
                                                
                                                    
                                                        
                                                            1 reply so far...
                                                        
                                                    
                                                    
                                                
                                                
                                                
                                                
                                                
                                            
                                        
                                    
                                                
                                                 · Viewed 597 times
                                            
                                            
                                            Should the invoice number have a certain format? I am using a very simple ordered numerical identifier, e.g. 1, 2, 3…N for all my invoices. Is that ok? Can the system change later on?
Note that the date is of course present in the invoice as well.
