Hi @SG17,

UI builder api execute will not return the values.

So one approach that you can use is to call the REST apis from the Client code. Which will give the response result. 

Refer https://developer.servicenow.com/dev.do#!/reference/api/utah/client/helpersAPI#helpers-snHttp_S_O

use the rest API explorer to understand which is best fit api for you.

Ex: you can use POST method URL could be like: /api/now/table/{tableName} 

Please accept the reply if it resolved your issue.

Thanks

Nootan