We recently worked on a requirement where we customized an out-of-the-box ribbon button in Dynamics 365 — specifically, the Reactivate Lead button. We had renamed it to ‘Reactivate’ as part of an earlier customization.

Below is how the button appeared on the form after customization:

Later, we had a new requirement to hide this button completely and replace it with a custom ribbon button that implemented our own reactivation logic. However, when we tried to hide the button using Ribbon Workbench, we noticed that the Hide option was not available.
When we opened Ribbon Workbench and inspected the button, we observed that since the button was already customized, the standard options like Hide were no longer available.
While working within the same Ribbon Workbench session, we could see the ‘Uncustomize Button’ option.

However, an interesting behavior we observed is that once we closed or reopened the solution inside the Ribbon Workbench, the ‘Uncustomise Button’ option was no longer available. In that case, only the Delete option was visible.

This is expected behavior. Once an OOTB button is customized, it becomes part of the solution layer, and certain default actions like Hide are no longer directly available.
To fix this and restore the original behavior, we followed a simple approach.
We selected the customized button in Ribbon Workbench and chose the Uncustomize Button or Delete option. We then published the solution and reloaded it. Once the solution was reloaded, the button was restored to its original out-of-the-box state. And now, the Hide option was available again as expected.

This allowed us to properly hide the OOTB button and proceed with implementing our custom ribbon button.
We referred to the blog below, which helped confirm the approach: https://innovativeaj.wordpress.com/2020/09/29/bring-me-back-to-life-restoring-the-d365-ootb-button-to-default-version/
Hope it helps..















