Is there a reason you don't want to use the 'SQL' against the tab, as in the example for v7.1?

That said, I think your code is not working because of the way you are trying to get the Company ID and the userId if I use the following:

crm.ready (function(){
var CompId = crm.getArg("Key1",crm.url());
var CurrUse = crm.CurrentUser.user_userid;
if (CurrUse==1&&CompId==2227)
{
crm.hideTab ("TabNames","Communications");
}
});

It works as expected.

Thanks Toby I will try this.

The SQL against the TAB works with a single variable but I could not I get it to work with two conditions.

My query was probably incorrect, and I found the article so tried the script as an alternative.

EAD

Thank you Toby.

With a few minor changes that worked

EAD