Making Company Mandatory for Contact Records
From SmartWiki
To make selecting the Company when creating or editing contacts you must create a custom field of type Custom Field Type: Special – Browser Script and place it on a custom field on all contacts via Global Settings > User & Contact Settings > Contact Custom Fields. (Terminology may be different in your copy of SmartSimple)
function savefunc(frm){ var element=frm.companyid; if((element&&frm.companytxt) && frm.companytxt.style.display!="none" && !frm.companytxt.readonly &&(element.value.length==0||element.value==0)){ alert("You must select the Organisation for this contact before saving."); return false; } }