Answers.Body: <p>By chance I also recently discovered this limitation, and <a href="https://lab.civicrm.org/dev/event/issues/34" rel="nofollow noreferrer">opened a ticket</a> for it.</p>
  
  <p>I wrote the code to add this feature, but it requires a change to the CiviCRM schema, so I don't recommend patching yourself unless you know what you're doing.  I <a href="https://github.com/civicrm/civicrm-core/pull/16615" rel="nofollow noreferrer">wrote a patch</a> to clean up checking whether a participant can self-update.  Once that's approved, I'll submit a patch to allow negative values for the "hours until cancellation" field.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-02-23T14:54:30.763Z
Answers.LastActivityDate: 2020-02-23T14:54:30.763Z
Answers.UserDisplayName: Jon G - Megaphone Tech
Answers.Body: <p>I think(but not sure) if you append is_backoffice=1 to the self-service cancellation url it should do what you want. </p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-01-23T19:10:52.550Z
Answers.Text: Thanks for the idea-> I tried it-> error is: "24_isbackoffice=1) is not of the type Positive" In case it matters, this is a Wordpress site. id=24 are the last digits of the cancellation URL.
Answers.UserDisplayName: CiviLearner
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-01-23T19:33:27.707Z
Answers.Text: You will need to add &is_backoffice=1
Answers.UserDisplayName: Pradeep Nayak
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-01-23T19:34:16.923Z
Answers.Text: If you need to add arguments to url or link it should be separated by &
Answers.UserDisplayName: Pradeep Nayak
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-01-26T19:34:07.133Z
Answers.Text: Thanks for the clarification! OK, the box that says "Sorry registration for this event cannot be cancelled..." goes away, but the box that says "Registration is closed for this event" is still up, and it won't let me cancel. Any ideas how to let registrants use their self-service cancellation links after the event has begun? Thanks again.
Answers.UserDisplayName: CiviLearner
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-01-23T18:09:15.993Z
Answers.LastActivityDate: 2020-01-23T18:09:15.993Z
Answers.UserDisplayName: Pradeep Nayak
Body: <p>It seems that Civi does not allow people to use the self-service cancellation after the event start. We have some multi-day and longer-term events that it would be very helpful for them to still be able to self-cancel. 
  Questions:
  * Is there setting to let Civi permit cancellations after the event start?</p>
  
  <ul>
  <li>If not...would the event online registration setting "cancellation or transfer time limit (hours)" - could that be made negative somehow (i.e. until 1d after event start)?</li>
  </ul>
  
  <p>Just a user, not a developer here, thanks in advance!</p>
  
Tags: <civievent><online-registration>
Title: using cancellation link after event start date?
ThreadText: # using cancellation link after event start date?
  
  (Asked by: username_0 on 2020-01-23)
  
  It seems that Civi does not allow people to use the self-service cancellation after the event start. We have some multi-day and longer-term events that it would be very helpful for them to still be able to self-cancel.
  Questions:
  \* Is there setting to let Civi permit cancellations after the event start?
  
  * If not...would the event online registration setting "cancellation or transfer time limit (hours)" - could that be made negative somehow (i.e. until 1d after event start)?
  
  Just a user, not a developer here, thanks in advance!
  
  **Tags:** civievent, online-registration
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2020-02-23. Score: 2
  
  By chance I also recently discovered this limitation, and [opened a ticket](https://lab.civicrm.org/dev/event/issues/34) for it.
  
  I wrote the code to add this feature, but it requires a change to the CiviCRM schema, so I don't recommend patching yourself unless you know what you're doing. I [wrote a patch](https://github.com/civicrm/civicrm-core/pull/16615) to clean up checking whether a participant can self-update. Once that's approved, I'll submit a patch to allow negative values for the "hours until cancellation" field.
  
  
  ---
  
  ### Answer by username_2 on 2020-01-23. Score: 0
  
  I think(but not sure) if you append is\_backoffice=1 to the self-service cancellation url it should do what you want.
  
  > **Comments:**
  > **username_0**: Thanks for the idea-> I tried it-> error is: "24_isbackoffice=1) is not of the type Positive" In case it matters, this is a Wordpress site. id=24 are the last digits of the cancellation URL.  
  > **username_2**: You will need to add &is_backoffice=1  
  > **username_2**: If you need to add arguments to url or link it should be separated by &  
  > **username_0**: Thanks for the clarification! OK, the box that says "Sorry registration for this event cannot be cancelled..." goes away, but the box that says "Registration is closed for this event" is still up, and it won't let me cancel. Any ideas how to let registrants use their self-service cancellation links after the event has begun? Thanks again.  
  
  ---
  
  