Add Dynamic Order Number Prefix [mm-yy-ordernumber]

Question

My client wants the current month and year as a prefix in order numbers. I have read many blogs but they are all for static prefix for order number.

I am looking for a solution in Magento 2.

Answer 1

You can do that with a custom increment model.

You can read about increment models here: How to set order increment id iterator in magento 1?

In Magento 2, the implementation is still the same. In your case, you would extend Magento\Eav\Model\Entity\Increment\NumericValue and add a getPrefix() method to implement your custom prefix:

namespace Stack\OrderNumber\Model\Entity\Increment;

use Magento\Eav\Model\Entity\Increment\NumericValue;
class DatePrefix extends NumericValue
{
    public function getPrefix()
    {
        return \date('m-y');
    }
}

Then update increment_model for orders in the eav_entity_type table and change it from Magento\Eav\Model\Entity\Increment\NumericValue to your model (e.g. Stack\OrderNumber\Model\Entity\Increment\DatePrefix)