Do you mean that you have created a Custom Taxonomy, but then do not see its user interface when going to WP Admin > Posts > Add New Posts?
If so, please verify the new taxonomy is connected to the posts content type by first extending the post Post Type under Pods Admin > Add New, then checking Posts (post) under the Connections tab when editing the custom taxonomy under Pods Admin > Edit Pods.
If it still does not display, verify the taxonomy user interface is not hidden:
- In the Block Editor by clicking the top-right three-dots next to
Save then > Preferences at the bottom of the menu, making sure the taxonomy is turned on under General > Document Settings.
- In the Classic Editor by making sure the box is checked for the taxonomy under
Screen Options in the top-right corner of the Add New Post screen.
