How to generate invoice number?

Just FYI, there are several good past post on this where myself and others have given examples.

But you can get the id of the new record and build off of that.

Hi,

You could say in your "invoice" model, the public string property $prefix, as if you were adding a new field to your database. On the other hand, on the admin side, you can put a select for the choice.

class Invoice {
		public string  $prefix = "ABC_"
}

In seeders, add the prefix field to generate them. Or create an enum for each type of invoice, for example :

Enums Invoice {
		case water = 'water_';
		case eat = 'eat_'
}

Please note that the articles may be out of date.

https://dev.to/mirmayne/implementing-an-invoice-numbering-system-with-php-using-laravel-6-dd4

https://laravel-news.com/enum-helpers-for-php

https://laracasts.com/discuss/channels/laravel/how-to-generate-invoice-number

is it ok for two branches to have the same sequential part, eg ABC001234 and DEF001234

@red_wine The first question would be, can this prefix be changed? If yes, how does that affect numbering?

For example, if the prefix is “ABC” and invoices ABC-0001, ABC-0002, and ABC-0003 are generated; what would happen if the prefix was then changed to “XYZ”? Should the numbering continue, i.e. XYZ-0004, XYZ-0005, etc? Or should numbering start over again with the new prefix (XYZ-0001, etc).