Answers.Body: <p>Seems to occur when the mailing is viewed on a browser.</p>
  <p>Point of error seems to be <a href="https://github.com/civicrm/civicrm-core/blob/master/ext/flexmailer/src/API/MailingPreview.php#L54" rel="nofollow noreferrer">https://github.com/civicrm/civicrm-core/blob/master/ext/flexmailer/src/API/MailingPreview.php#L54</a> where <code>$job</code> object seems to be created but not populated with the id. Adding</p>
  <pre><code>$job-&gt;find(TRUE);
  </code></pre>
  <p>fixes the error for us, will monitor for few days if there are more occurrence of such warnings and will raise a PR if this was the only possible way to replicate.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-07-20T10:31:47.343Z
Answers.Text: PR is now raised in core with the above fix: https://github.com/civicrm/civicrm-core/pull/30718
Answers.UserDisplayName: jitendra - fuzion
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-08-24T12:41:12.857Z
Answers.Text: This edit does fix the issue for me as well. However the discussion on the PR seems to mean that the devs are uncertain whether this is the right way to address it. Is it accurate to say that the warning is harmless (i.e. invisible to the end user) and could be ignored?
Answers.UserDisplayName: twowheeler
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-06-26T06:19:20.697Z
Answers.LastActivityDate: 2024-06-26T06:19:20.697Z
Answers.UserDisplayName: jitendra - fuzion
Body: <p>I'm running civiCRM  v5.70.1 under Joomla 3.10.12.
  Last week I enabled Settings - CiviMail: Unsubscribe Methods HTTP(S) One-Click
  On the next scheduled mailing, I noticed it completed with zero sends.
  civicrm error log reported: [warning] Failed to set final value of List-Unsubscribe</p>
  <p>Anyone have some insight into why this would occur?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-03-14T00:22:26.940Z
Comments.Text: What is your "verp separator" at `civicrm/admin/mail?reset=1`? You can also try debugging the value of `$params['List-Unsubscribe']` at CRM/Mailing/Service/ListUnsubscribe.php line 48
Comments.UserDisplayName: Demerit
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-03-22T18:07:37.360Z
Comments.Text: My verp separator is set to a period ( . )
  Debugging the value of $params is beyond my pay grade, not sure how I'd do that...
Comments.UserDisplayName: A. Block
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-06-05T13:23:58.433Z
Comments.Text: I run into the same warning and my verp separator is set to a period as well without HTTP(S) One-Click enabled.
  The error log is full with these messages. They are occuring around 8 times in a minute.
  Does anyone has an idea what this means and how to solve it? Thanks! CiviCRM 5.72.3
Comments.UserDisplayName: Maria
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-07-13T16:51:31.717Z
Comments.Text: On 7-13-2024 I still have the problem ? The "fix" did not fix anything for me.
Comments.UserDisplayName: barbaraec
Tags: <civimail>
Title: Warning: Failed to set final value of List-Unsubscribe
ThreadText: # Warning: Failed to set final value of List-Unsubscribe
  
  (Asked by: username_0 on 2024-03-11)
  
  I'm running civiCRM v5.70.1 under Joomla 3.10.12.
  Last week I enabled Settings - CiviMail: Unsubscribe Methods HTTP(S) One-Click
  On the next scheduled mailing, I noticed it completed with zero sends.
  civicrm error log reported: [warning] Failed to set final value of List-Unsubscribe
  
  Anyone have some insight into why this would occur?
  
  **Tags:** civimail
  
  > **Comments:**
  > **username_1**: What is your "verp separator" at `civicrm/admin/mail?reset=1`? You can also try debugging the value of `$params['List-Unsubscribe']` at CRM/Mailing/Service/ListUnsubscribe.php line 48  
  > **username_0**: My verp separator is set to a period ( . ) Debugging the value of $params is beyond my pay grade, not sure how I'd do that...  
  > **username_2**: I run into the same warning and my verp separator is set to a period as well without HTTP(S) One-Click enabled. The error log is full with these messages. They are occuring around 8 times in a minute. Does anyone has an idea what this means and how to solve it? Thanks! CiviCRM 5.72.3  
  > **username_3**: On 7-13-2024 I still have the problem ? The "fix" did not fix anything for me.  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_4 on 2024-06-26. Score: 2
  
  Seems to occur when the mailing is viewed on a browser.
  
  Point of error seems to be <https://github.com/civicrm/civicrm-core/blob/master/ext/flexmailer/src/API/MailingPreview.php#L54> where `$job` object seems to be created but not populated with the id. Adding
  
  ```
  $job->find(TRUE);
  
  ```
  
  fixes the error for us, will monitor for few days if there are more occurrence of such warnings and will raise a PR if this was the only possible way to replicate.
  
  > **Comments:**
  > **username_4**: PR is now raised in core with the above fix: https://github.com/civicrm/civicrm-core/pull/30718  
  > **username_5**: This edit does fix the issue for me as well. However the discussion on the PR seems to mean that the devs are uncertain whether this is the right way to address it. Is it accurate to say that the warning is harmless (i.e. invisible to the end user) and could be ignored?  
  
  ---
  
  