# Microsoft Finance & Operations 401 Error
### Introduction
This article guides users through resolving the "Please verify that the user is valid and set up correctly" error in Microsoft Dynamics 365 Finance & Operations (FNO). This error, often accompanied by a 401 Unauthorized response, occurs when the Microsoft Entra ID application is not correctly set up or associated with a valid user account in FNO. Following the steps below will help ensure proper configuration and restore application access.
{% hint style="info" %}
**Error Message**": 401 "Please verify that the user is valid and set up correctly."
{% endhint %}
### Steps to Resolve the Error
**Step 1: Login and Search for Microsoft Entra ID Applications**
* Login to your FNO account using administrator credentials.
* In the search bar, type **"Microsoft Entra ID applications"** and open the option that appears.
**Step 2: Add a New Application Entry**
* Click the **New** button to add a new record in the Microsoft Entra ID applications list.
* Enter the **Client ID** for your application in the respective field.
* Set the **User ID** field to **ADMIN** to associate the application with the administrator account.
**Step 3: Save and Validate Configuration**
* After entering the Client ID and User ID, click **Save** to apply the changes.
* Perform a test login or integration to verify if the error persists.
**Step 4: Troubleshoot Further If Needed**
* Confirm the Client ID exactly matches the one registered in your Azure portal.
* Ensure the ADMIN user account in FNO is active and has the required permissions.
* Check for any conditional access policies or additional security settings that might block authentication.
{% hint style="info" %}
**Note:**
* The **Client ID** is the unique identifier you receive when you create an application in Microsoft Entra (Azure AD).
* The **Name** is a custom, descriptive name you assign to the application within Dynamics 365 Finance & Operations (FNO) for easy identification.
* The **User ID** corresponds to a user in FNO with the appropriate permissions; this can be searched and set according to the permissions granted to each user.
{% endhint %}
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