# Refresh Named Credentials
To learn more about the Named credentials maintenance, see [Maintaining Named Credentials](/integrations/setting-up-limio-for-salesforce/detailed-salesforce-setup/named-credentials-package/named-credentials.md).
* Who can refresh Named Credentials?\
Any active Limio user (regardless of the Role).
* How often do you need to refresh your Limio Named Credentials?\
The frequency of this process needs to be aligned with the Refresh token expiration term defined in your Amazon Cognito tenant in case your Authorization user changes.
## **How to refresh Limio credentials?**
### For new Named Credentials + External Credentials:
Available in LFS version 13.00 or later
1. Go to **Setup** → **Named Credentials**
2. Click on the **External Credentials** tab
3. Click **Limio**, scroll down to the **Principals** section, and click **Authorize** in the row actions.
4. You will be redirected to the new tab where prompted to enter your relevant **Limio org credentials**. Click Submit and go back to SF.
5. When the authentication is successful, retest your flows again.
| For legacy named credentials:
Go to Setup → Named Credentials
Find Limio and press Edit.
1. The following values should be populated:
- Name & Label: Limio
- URL: \ (e.g. )
- Identity Type: Named Principal
- Authentication Protocol: OAuth 2.0
- Authentication Provider: i42\_Hub
- Scope: \ (e.g. )
2. Make sure the checkbox “Start Authentication Flow on Save" is checked
As soon as you click Save, you will be redirected to the Limio auth page to submit your credentials.
3. Enter your credentials from the relevant Limio environment:
According to the example from step 1, you would enter your credentials for .
When the authentication is successful, the Authentication Status is Authenticated.
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## How to refresh Zuora credentials?
If you're using **Named Credentials with External Credentials** for Zuora authentication, follow these steps to update your credentials:
1. Go to **Setup** → **Named Credentials**
2. Click on the **External Credentials** tab
3. Locate the **Zuora** entry and click **Edit** from the row actions under the **Principals** section.
4. In the **Edit Principals** modal:
* In the **Authentication Parameters** section, update or add the following:
* `Name: Username` → `Value: your Zuora username`
* `Name: Password` → `Value: your Zuora password`
5. Click **Save**.
6. Once saved, **retest your Limio for Salesforce flows** to confirm the credentials are working correctly.
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