Problem

Extensiv Integration Manager displays the following error message when trying to communicate with WooCommerce:

Multiple orders with the same Order Number (cust_ref) but different order dates detected!
This can be a serious issue since every order needs to have a unique Order Number.
Please investigate the following order in both Extensiv 

Integration Manager

and your shopping cart: XXXX

Solution

This error is caused if Integration Manager detects multiple orders with the same Order Number, but different order dates. This is usually caused by a change in WooCommerce, or if you have re-installed WooCommerce.

WooCommerce will reset its order number counter and start re-using order numbers. This is a serious issue which will cause duplicate order numbers to be ignored.

If there are only a few affected orders, you can resolve this by manually re-placing the orders in WooCommerce so they have a new order number.

If you need a permanent solution there are two options:

1. Disable your WooCommerce cart in Integration Manager, and setup a brand new one.
   • This will allow Integration Manager to consider the new orders as coming from a different shopping cart and be able to tell the new conflicting orders apart from the old ones.
2. Install a plugin that lets you change the Order Numbers.
   • WooCommerce does not currently allow you to change the order number counter and fix this problem yourself.
   • A plugin like this one will allow you to change the order number counter or add a prefix to the order number to guanrantee it will be unique from any previous orders.