I have 2 batch Apex classes that update Account fields from different custom objects. I was running into issues of accessing records and found a way to run the batches in order. The test class for my 1st batch runs and covers my classes. When I run the 2nd test class, I get the following error & Stack Trace:

System.StringException: Only CronTrigger IDs and batch, future, and queueable job IDs are supported.

Class.AccountTotalReferralsBatch.finish: line 23, column 1

Can anyone help me resolve this error?

Batch Class:

public class AccountTotalReferralsBatch implements Database.Batchable<sObject> {
    public Database.QueryLocator start(Database.BatchableContext context) {
        return Database.getQueryLocator([SELECT Id FROM Account]);
    public void execute(Database.batchableContext context, Account[] scope) {
        Map<Id, AggregateResult> results = new Map<Id, AggregateResult>([
            SELECT Account__c Id, COUNT(Id) amt 
            FROM Referral__c 
            WHERE Account__c = :scope AND Age__c<366 GROUP BY Account__c]);
        for(Account record: scope) {
            AggregateResult amount = results.get(record.Id);
            if(amount != null) {
                record.Referrals__c = (Decimal)amount.get('amt');
            } else {
                record.Referrals__c = null;
        update scope;
    public void finish(Database.BatchableContext bc) {
        BatchSchedule__c b = BatchSchedule__c.getOrgDefaults();

Scheduler Class:

global class AccountTotalReferralsSchedule implements Schedulable{
    global void execute(SchedulableContext sc){
        AccountTotalReferralsBatch ref = new AccountTotalReferralsBatch();

Test Class:

@istest (SeeAllData=FALSE)
public class AccountTotalReferralsTest{
    public static testmethod void testBatch1() {
        Account account = TestUtility.createAccount('Prospect', Constants.RECORDTYPEID_ACCOUNT_FAMILY);
        insert account;
        Contact contact = TestUtility.createContact(account.Id, Constants.RECORDTYPEID_CONTACT_FAMILY, 'Primary');
        insert contact;
        Encounters__c encounter = TestUtility.createEncounter(account.Id, contact.Id, '', '');
        insert encounter;
        BatchSchedule__c batchSchedEnc = new BatchSchedule__c();
        insert batchSchedEnc;

            string chron = '0 0 23 * * ?';
            string jobid = System.schedule('testScheduledApex', chron, new AccountTotalEncountersSchedule());
            CronTrigger ct = [Select id , CronExpression from CronTrigger where id = :jobId];

        Referral__c testRef = new Referral__c();
        testRef.Name = 'Test';
        testRef.Account__c = account.Id;
        insert testRef;

        batchSchedEnc = [SELECT Id,Scheduled_Id__c FROM BatchSchedule__c WHERE ID =: batchSchedEnc.Id];
            batchSchedEnc.Scheduled_Id__c = ct.Id;
        AccountTotalReferralsBatch testBatch = new AccountTotalReferralsBatch();
  • 1
    Do you have a typo where you are scheduling the class? In your test class I see AccountTotalEncountersSchedule whereas in the question you have it as AccountTotalReferralsSchedule. – Jayant Das Nov 12 '20 at 19:04
  • 1
    Does that custom setting field have a value? If so, what is it? – Adrian Larson Nov 12 '20 at 19:05
  • @JayantDas I have the AccountTotalEncountersSchedule class in there to create a batch record that the custom setting would access for the AccountTotalReferralsAchedule class – J. Neilan Nov 12 '20 at 19:11
  • 3
    @J.Neilan I could be reading this wrong, but did you just forget to add update batchSchedEnc; after the line batchSchedEnc.Scheduled_Id__c = ct.Id;? – Bow-chicawow-ers Nov 13 '20 at 3:45
  • 1
    Sure thing. As the lone developer at my company, love the virtual code review community we've got here – Bow-chicawow-ers Nov 13 '20 at 18:54

Looks like you're just missing update batchSchedEnc; after the line batchSchedEnc.Scheduled_Id__c = ct.Id;

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