How to restrict a record producer available for only with the groups with the parent company as ABC

[VaishnaviShinde]

Means you want to show the record producer to logged user if that user is member of that group right?

if yes then try below code

checkUsers(gs.getUserID());
function checkUsers(user){
    var userGrp = new GlideRecord('sys_user_group');
    userGrp.addEncodedQuery("u_par_company=ABC^active=true");
    userGrp.query();
    while (userGrp.next()){
        var grMember = new GlideRecord('sys_user_grmember');
        grMember.addQuery('group',userGrp.sys_id);
        grMember.addQuery('user',user);
        grMember.query();
        if(grMember.next){
          return true;
        }else {
          return false;
        }

    }

}

Declare the answer variable in your code 

[Sheetal18]

still not working

[VaishnaviShinde]

There is no active field on group table so try the below code

checkUsers(gs.getUserID());

function checkUsers(user){

    var userGrp = new GlideRecord('sys_user_group');

    userGrp.addEncodedQuery("u_par_company=ABC");

    userGrp.query();

    while (userGrp.next()){

        var grMember = new GlideRecord('sys_user_grmember');

        grMember.addQuery('group',userGrp.sys_id);

        grMember.addQuery('user',user);

        grMember.query();

        if(grMember.next){

          return true;

        }else {

          return false;

        }

    }

}

[VaishnaviShinde]

Is company field on group table is refence filed? if it is reference field then add below query

userGrp.addEncodedQuery("u_par_company.name=ABC");