> For the complete documentation index, see [llms.txt](https://docs.magecomp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.magecomp.com/magento-2-custom-order-number-extension/configuration.md).

# Configuration

Once the extension is installed successfully, go to **Stores>Configuration** to configure the extension for use.

<figure><img src="https://807210804-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F8wMgNeFnYjVGQmgdxMv4%2Fuploads%2FROpsAWaYppEudIMQoxIn%2Fimage.png?alt=media&amp;token=a75f0ac7-8d26-4ff9-888d-af6b34fc83f6" alt=""><figcaption></figcaption></figure>

**Enable:** Enable or Disable the extension from here. Set it as enabled to use the

features of the extension.

**Order**

**Prefix:** Admin can add prefix alphabet characters from here. Special characters are not allowed.

**Start Counter From:** Admin will have to add a custom counter number from where the order number can start.

**Postfix:**  Admin can add postfix alphabet characters from here. Special characters are not allowed.

<figure><img src="https://807210804-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F8wMgNeFnYjVGQmgdxMv4%2Fuploads%2F4rKIzyzYgl8gUOB4ZCSa%2Fimage.png?alt=media&amp;token=a217e846-a525-420f-96b5-5f3ebf3119cb" alt=""><figcaption></figcaption></figure>

**Invoice**

**Prefix:** Admin can add prefix alphabet characters from here. Special characters are not allowed.

**Start Counter From:** Admin will have to add a custom counter number from where the invoice number can start.

**Postfix:**  Admin can add postfix alphabet characters from here. Special characters are not allowed.

**Shipment**

**Prefix:** Admin can add prefix alphabet characters from here. Special characters are not allowed.

**Start Counter From:** Admin will have to add a custom counter number from where the shpment number can start.

**Postfix:**  Admin can add postfix alphabet characters from here. Special characters are not allowed.

<figure><img src="https://807210804-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F8wMgNeFnYjVGQmgdxMv4%2Fuploads%2FQQ6IVhXpbpDSRzoJTUOR%2Fimage.png?alt=media&amp;token=9d34f670-f903-497b-9553-8caaff639056" alt=""><figcaption></figcaption></figure>

**Credit Memo**

**Prefix:** Admin can add prefix alphabet characters from here. Special characters are not allowed.

**Start Counter From:** Admin will have to add a custom counter number from where the credit memo number can start.

**Postfix:**  Admin can add postfix alphabet characters from here. Special characters are not allowed.