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How do you set up Commerce to use sequential order ID's
I need the completed carts to be sequential, even if they need to be assigned new numbers on completion.
Questions? Answers.
Have a look at http://drupal.org/project/commerce_invoice
It has a default Rule that generates an invoice number when an order state is set to 'Completed'. You can add extra conditions if you like.
Documentation on how to use the module at
http://drupal.org/node/1535554
To configure the invoice numbering go to admin/commerce/config/invoice
More advanced invoice numbering handling is being discussed at:
http://drupal.org/node/1728106