> For the complete documentation index, see [llms.txt](https://docs.peakcommerce.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.peakcommerce.com/product/settings/settings-overview/unable-to-login-to-peakcommerce.md).

# Unable to Login to PeakCommerce

Below are typical situations users might face:

1. **Forgetting Login Credentials:** Users may forget their username and password and require assistance in recovering them.
2. **Billing System Integration Changes:** There could be instances where the username and password for billing system integration have altered, expired, or the account is deactivated. Users will need to update their details accordingly.
3. **Deletion from PeakCommerce:** If a user's account is deactivated in the billing system, their PeakCommerce account will also be removed. This ensures data consistency.
4. **Single Sign-On Issues:** Users employing Single Sign-On (e.g., logging in with Salesforce, Google, or Facebook) may encounter issues if their account is deactivated or deleted in the source application. It's vital to verify the user's status in the source application and ensure no changes to their username or password.

The most common scenario is the deactivation of the integration user, established in PeakCommerce's administrative section. If this occurs, it's advisable to update the integration user's information or reactivate their account.

Should you encounter any of these situations, please adhere to the recommended steps for swift resolution.


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