function createUsers(anvilAPI, zendeskAPI, ravenAPI, newAcctInfo, aAcctInfo, aZendeskOrg, owner) {
    // 4:
    var pendingAnvilUsers = [];
    newAcctInfo.listOfUsers.forEach(aUser => {
      pendingAnvilUsers.push(anvilAPI.addUserToAccount(aAcctInfo.id, aUser));
    });
    return Promise.all(pendingAnvilUsers).then(aAnvilUsers => {
      // 5
      var pendingZendeskUsers = [];
      aAnvilUsers.forEach((aAnvilUser, index) => {
        if (!aAnvilUser) {
          logger.log('Could not create user', index, newAcctInfo.listOfUsers[index].email);
          pendingZendeskUsers.push(null);
        } else {
          pendingZendeskUsers.push(zendeskAPI.createUser(aZendeskOrg, aAnvilUser));
        }
      });
      return Promise.all(pendingZendeskUsers).then(aZendeskUsers =>
      // 6. Send mails. We could have done this as we were processing but...
         Promise.all(
          aAnvilUsers.map(aUser => {
            // New users have this field, and we should only send the mail for those
            if (aUser.email === owner.email) {
              aUser.ctPassword = owner.ctPassword;
            }
            if (aUser.ctPassword) {
              return ravenAPI && ravenAPI.sendCustomMail(aUser.email, {
                user: aUser,
                organization: aAcctInfo
              });
            } else {
              return null;
            }
          })
        ).then(aSentMails => [aAnvilUsers, aZendeskUsers, aSentMails])
      );
    }).catch(e => {
      logger.log('Returning error:', e);
    });
  }