> For the complete documentation index, see [llms.txt](https://help.fungies.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.fungies.io/user-portal/core-features/account-management.md).

# Account Management

### Billing Information Management

**Profile & Billing Tab**

* Update personal information (first name, last name)
* Modify billing address details
* Change country and city information
* Business purchase designation option
* Real-time validation and secure data handling

**Important Notes:**

* Billing details are used for all future invoices and purchases
* Changes take effect immediately for new transactions
* Historical invoices retain original billing information

<figure><img src="/files/nVn1vqWxj59BYF4m9404" alt=""><figcaption><p>Users can change their billing details which affect invoices</p></figcaption></figure>