Once the extension is enabled, and the required prefix and suffix details are provided and the configuration is saved when an order is placed the saved prefix and suffix will be visible. 

Lets first check how the default order number looks like i.e when the extension is disabled how the order ID is generated. 

Here the order number is “000000016”. Now lets us enable the extension and provide the prefix and suffix details and check the order number. 

For example – 

After placing the order the prefix and suffix saved with will be visible.

Add new Prefix and Suffix according to a customer group, website, and store form.

Dropdown for currently enabled Customer Group.

Dropdown for currently enabled Website.

Click on the save button.

II.) To Edit the saved Condition Click on Action >> Edit in the Custom Order Number Admin Grid. It will redirect to the edit form

 Order Number with the changes