To hide the task properties button in particular pre configured page 



- Create a module for css "UsrPreConfiguredPageCSS" and add the code in LESS :



#{{PageCode}}TaskDetailsButtonContainerContainer{

    display: none;

}



- Add the CSS file in the page client module.

Here {{PageCode}} will be UsrClientUnit_d105110

Hope this helps.



Regards

Goparna Nasina

It would be best to uncheck the "Create activity" checkbox in the pre-configured  page settings in process designer.

https://academy.creatio.com/docs/release/release-notes/7182-release-not…

Solving it with CSS styles is wrong and could stop working at any moment. It uses parts of CSS that are not publicly documented or checked for backward compatibility.