Hmm any idea why this filter:

{
                        name: "custbody_" + config.client.id + "_bill_status",
                        operator: search.Operator.ANYOF,
                        values: ["Validation Issue", "Cancelled", "Failed"]
                    },

is not working? While that custom field is a string field?

I believe anyof can only be used with internal ids

Yeah I found a website. Now I need to generate a complex or query... Kinda annoying