| Products | Versions |
|---|---|
| Spotfire Statistica | 14.1 and higher |
| Spotfire Data Science - Statistica | 14.1 and higher |
| Spotfire Statistica - All Servers | 14.1 and higher |
When using Spotfire Statistica Data Entry, the Sample Revision History is blank or doesn't load, like the example below:

OS: Windows Server
Install the HTTP Activation by following these steps:
1. Open the Server Manager by going to Start (Windows icon)>>Server Manager:

2. Select "Add roles and features":

3. Click "Next" on the "Before you begin":

4. Choose the installation type. Typically this is "Role-based or feature-based installation":

5. Select the server. Typically this is the same server where this wizard is running:

6. Click "Next" on the server roles:

7. Select HTTP Activation under .NET Framework 4.x Features>>WCF Services:

8. Click "Install":

Now the Sample Revision History will appear:

Note: If the Sample Revision History still will not load, then most likely the HTTP/HTTPS endpoint configuration is incorrect . Please follow the steps in this knowledge base article to enable the correct endpoint(s): https://support.tibco.com/external/article?articleUrl=How-to-resolve-the-issue-of-unable-to-populate-the-dropdown-list-of-a-queried-label-in-Statistica-Web-DataEntry-when-using-only-https
How to resolve the issue when the Sample Revision History is blank or doesn't appear for Spotfire Data Entry.