Assignment group field should show limited groups

[Community Alums]

Hello everyone!
I was tasked to hide certain groups from the assignment group field. This should be done pretty easily with a dictionary override. But since there are several groups involved I cannot just exclude group type A from the reference qualifier or else the users won't be able to select their groups. Before the ref. qualifier was set up to: Type contains group A OR type contains group B. Now the requirement is to make only Group B available if company is X showing only the results needed for end users working on the incident to select.
How can I achieve this? I have tried a couple script includes but I could not achieve the result intended.

I have attached the scripts for reference.

[Community Alums]

var ReferenceQualifierHelper = Class.create();
ReferenceQualifierHelper.prototype = {

backfillAssignmentGroup: function() {
var assigneeGroupsQualifier = '';
var company = current.company;

if (!company)
return;

var availableGroups = [];
if (company == 'X') {
availableGroups = ['X Call Desk Agent', 'X First Line Agent', 'Field Services of X Lux', 'Field Services of X Sgp', 'Field Services of X Lie', 'IT & Security governance', 'Field Services of X'];
} else {
availableGroups = [];
}

availableGroups.forEach(function(group, index) {
if (index == 0) {
assigneeGroupsQualifier = 'sys_idIN' + group;
} else {
assigneeGroupsQualifier += ',' + group;
}
});

gs.log('DP: RefQual = ' + assigneeGroupsQualifier);
return assigneeGroupsQualifier;
},
type: 'ReferenceQualifierHelper'
};

[AniketC85155510]

Hello @Community Alums ,

Please give a try to the modified script below and see how its working for you.

var ReferenceQualifierHelper = Class.create();
ReferenceQualifierHelper.prototype = {

    backfillAssignmentGroup: function() {
        var assigneeGroupsQualifier = '';
        var company = current.company;

        if (!company)
            return;

        var availableGroups = [];
        if (company == 'X') {
            availableGroups = ['X Call Desk Agent', 'X First Line Agent', 'Field Services of X Lux', 'Field Services of X Sgp', 'Field Services of X Lie', 'IT & Security governance', 'Field Services of X'];
        } else {
            // If the company is not X, make no groups available
            availableGroups = [];
        }

        if (availableGroups.length > 0) {
            assigneeGroupsQualifier = 'sys_idIN' + availableGroups.join();
        }

        gs.log('DP: RefQual = ' + assigneeGroupsQualifier);
        return assigneeGroupsQualifier;
    },
    type: 'ReferenceQualifierHelper'
};

Please Mark ✅Correct if this solves your query and also mark 👍Helpful if you find my response worthy based on the impact.

Thanks & Regards,

Aniket.

[Community Alums]

Hello @AniketC85155510 ,
Unfortunately it is still presenting all of the other groups. 
If there is any information that I can provide that might be relevant please do not hesitate to ask.