This is my first time posting in StackExchange, and my first real attempt to put together some code.

I am attempting to query CampaignMembers from the data base after passing a CampaignID to the class from a Flow. Once the Apex executes I would like to return a collection of CampaignMembers to the Flow including Id,ContactId,CampaignId.

I understand a list of lists may be required to achieve my desired outcome, but I'm unable to hack it together.

I've copied my code below.

global with sharing class ReturnCampaignMembers {

    public static List<Results> GetStatus (List<Requests> requests)
           ID v_camId = '7015A000001qWPcQAM';
           List<CampaignMember> rc_CM = [SELECT Id, ContactId, Contact.AccountId, CampaignId 
                 FROM CampaignMember WHERE Contact.Account.UpsellOpportunity__c='Yes' 
                 AND Contact.Account.Rating='High' AND CampaignId = : v_camId];

        Results curResult = new Results();

       List<Results> resultsList = new List<results>();          
        return resultsList;
        global class Results {
            global ID campaignmemberId;

            global ID campaignId;

            global ID contactId;

        global class Requests {
            global String v_camId;  
  • You have to return list<list<Result>> from invocable to get a collection in flow. – Ashish Sharma May 8 '19 at 6:18
  • Could you show me what you mean? I understand the concept, but can't seem to get it to work. – J. Steadman May 8 '19 at 11:29

You need to return List> to get collection in flow. Please follow the link to understand more: https://success.salesforce.com/answers?id=9063A000000pOpyQAE

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