​@SebastienAube I believe the problem is that for the relationships section of the JSON payload you specified null.

You should instead replace with something like below:

  "relationships": {
      "list": {
        "data": {
          "type": "list",
          "id": "<List ID>"
        }
      }
    }

below is article on how to find the list ID for list you wish to subscribe your profiles to:

https://help.klaviyo.com/hc/en-us/articles/115005078647

Thanks ​@whereisjad  I added the list element and get the same result unfortunately.

​@SebastienAube do you mind sharing the entire JSON payload again but redacting the IDs from it?  

I have a similar problem. I am using Symfonie and do the PHP api calls. 

From what I understand - reading documentation - for a double opt in I can add a profile without subscription and then send an E-Mail manually where the user would click a special link from within the email which sends an api call to set status to subscribed. 

is this action tied to a relation? I did that and it is working - I get a 202 response but the profile never updates.

 

public function subscribeProfile(string $email): bool
    {
        $url = self::API_BASE . '/profile-subscription-bulk-create-jobs';

        $payload = [
            'data' => [
                'type' => 'profile-subscription-bulk-create-job',
                'attributes' => [
                    'profiles' => [
                        'data' => [
                            [
                                'type' => 'profile',
                                'attributes' => [
                                    'subscriptions' => [
                                        'email' => [
                                            'marketing' => [
                                                'consent' => 'SUBSCRIBED',
                                            ]
                                        ]
                                    ],
                                    'email' => $email,
                                ]
                            ]
                        ]
                    ],
                    'historical_import' => false
                ]
            ]
        ];

        try {
            $response = $this->httpClient->request('POST', $url, [
                'headers' => array_merge(
                    $this->getHeaders(),
                    ['Content-Type' => 'application/json']
                ),
                'json' => $payload,
            ]);

            $status = $response->getStatusCode();

            if (!in_array($status, [200, 202])) {
                $body = $response->getContent(false);
                throw new \RuntimeException("subscribeProfile failed: HTTP $status - $body");
            }

            return true;
        } catch (\Throwable $e) {
            throw new \RuntimeException('Exception during subscribeProfile: ' . $e->getMessage(), 0, $e);
        }
    }

I create the profile in the first step of the DOI like so:

 

public function createProfile(string $email): ?string
    {
        $response = $this->httpClient->request('POST', self::API_BASE . '/profiles/', [
            'headers' => array_merge($this->getHeaders(), ['Content-Type' => 'application/json']),
            'json' => [
                'data' => [
                    'type' => 'profile',
                    'attributes' => [
                        'email' => $email,
                    ],
                ],
            ],
        ]);

        $data = $response->toArray(false);

        if (!isset($data['data']['id'])) {
            throw new \RuntimeException('Failed to create profile: ' . json_encode($data));
        }

        return $data['data']['id'];
    }

I am kind of at a lost as to where to find the information to spot my mistake...