De-activating Declarative Action Assignment 'New' doesn't seem to work

[Elena19]

I am using a extended table from case table so wanted to exclude 'New' Button from case table and only enable for the extended table but doesn't seem to work. I have added in action exclusions list for 'New' Declarative Action Assignment and also uncheck active part to just test. But no matter what, 'New' Button doesn't seem to go away in Agent workspace.

Are there other places I need to edit?

[ServiceNow Tec2 · Accepted solution]

This has been resolved by ServiceNow Technical Support. Please refer to KB1010084 for more information.

[Howard Baker]

That link is to the documentation for Declarative Actions, and does not have any info or links to information about excluding an action for a particular table. Could you provide any additional information?

[Elena19]

Hi Howard,

This is the step I got as a solution. 
Navigate to Workspace Experience-List actions- Check New Button on Task table- Advance Conditions in script give the condition as current.getTableName() !== "Tablename". For the table you want hide the new button.

thanks,

Elena