search

FAQ

Here is a list of frequently asked questions.

chevron-rightDoes InputTables overwrite my existing data?hashtag

No, we do not touch your existing data. All the edits are safely stored in a separate table. When you (re)open SuperTables, it will connect to this table and join the data to your existing data.

chevron-rightCan I re-use my edited data in other Tableau charts?hashtag

Yes! You are free to join the WriteBackExtreme table back to your primary datasource and use the values from WriteBackExtreme in your charts.

chevron-rightCan I comment in pivot mode on a group of rows?hashtag

No. It is only possible to comment on a single cell.

chevron-rightI click the comment or audit card in the side panel, but an incorrect cell highlights.hashtag

Likely, your primary key is not unique. Make sure that when you create a schema you do not see the warning "Your primary key is not unique".

chevron-rightCan I change my primary key for the schema?hashtag

No you cannot change your primary key. If you would change your primary key that will result in many orphan records. We recommend creating a new schema with the correct primary key.

chevron-right"Unable to reach WriteBackExtreme at this URL” when configuring InputTables in SuperTableshashtag

hashtag
Symptom

When configuring InputTables inside SuperTables, the following error is shown after entering the WriteBackExtreme URL:

“Unable to reach WriteBackExtreme at this URL. Check that the server is online, configured for this address, and accessible from this environment.”

This may occur even though:

  • The WriteBackExtreme URL opens successfully in a browser

  • The backend service is running and reachable on the network

As a result, the InputTables login screen does not appear and the integration cannot be completed.

hashtag
Cause

This issue is caused by browser-enforced Local Network Access restrictions introduced in modern browsers (for example Chrome 142+).

When InputTables is used inside SuperTables:

  • The extension runs in the browser context

  • If the extension is loaded from a public domain (e.g. Tableau Cloud or a SaaS-hosted extension)

  • And the WriteBackExtreme backend resolves to a private/on-prem network address

…the browser will block the request before it reaches the server, even if the URL is reachable directly in a browser tab.

This is a security restriction enforced by the browser, not a connectivity or configuration issue in InputTables or WriteBackExtreme.

hashtag
Resolution

To resolve this issue, both the extension and backend must be hosted in the same network context:

✅ Recommended

  • Use on-prem hosting for both SuperTables/InputTables and WriteBackExtreme

✅ Alternative

  • Use a fully public / SaaS setup for both the extension and the backend

❌ Not supported

  • Using a public domain extension with an on-prem/private WriteBackExtreme backend

There is no supported workaround within the browser, SuperTables, or InputTables for this scenario.

PreviousSupport

Last updated

Was this helpful?