Answers.Body: <p>This won't work, because CiviCRM doesn't communicate with Authorize.Net regarding changes to recurring billing.  Only token-based payment processors (e.g. iATS) do.</p>
  
  <p>While I can't answer specifically for Authorize.Net, in PayPal you can change the billing amount by no more than 20% every 6 months without entering new card info.  You do this from the PayPal UI.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-08-14T21:56:54.623Z
Answers.Text: Jon, thanks, Authorize doesn't communicate either way for a change in amount - to or from Civi? So only way to do an increase is to start a new monthly sustaining contribution/membership?
Answers.UserDisplayName: Joe McLaughlin
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-08-16T13:46:52.097Z
Answers.Text: Here's a link to my blog post about how iATS (token-based) payment processors differ from the Auth.net/paypal version: https://civicrm.org/blog/alan-dixon/recurring-payments-advanced-functions Note that iATS is not the only token-based payment processor for CiviCRM, but iATS is the only one that's funded development of it's plugin (and development of CiviCRM in general).
Answers.UserDisplayName: Alan Dixon
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-08-14T21:38:41.017Z
Answers.LastActivityDate: 2016-08-14T21:38:41.017Z
Answers.UserDisplayName: Jon G - Megaphone Tech
Answers.Body: <p>You'll need to cancel the transaction via Authorize.net's merchant portal, cancel the recurring contribution in civi, and create a new recurring gift.</p>
  
  <p>Civi can't do it all internally. </p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-08-15T17:20:09.047Z
Answers.LastActivityDate: 2016-08-15T17:20:09.047Z
Answers.UserDisplayName: Cullen McGough
Answers.Body: <p>Would this process not work?  If not, please comment and give some feedback so that I can alter what I'm expecting.</p>
  
  <p><a href="https://civicrm.stackexchange.com/questions/11339/resending-recurring-contributions-e-mail/14538#14538">Editing Recurring Contributions without user login</a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-09-12T14:33:17.693Z
Answers.LastActivityDate: 2016-09-12T14:33:17.693Z
Answers.LastEditDate: 2017-04-13T12:53:13.017Z
Answers.UserDisplayName: G H
Body: <p>We're on CiviCRM 4.6.19, Drupal 7.50 and we use Authorize.net for payment processing. </p>
  
  <p>If I simply want to increase the amount an existing monthly sustainer is giving, should I be able to do that by changing the monthly "subscription" amount in Authorize before the next monthly transaction? </p>
  
  <p>Is there a recommended way to do this in CiviCRM itself? </p>
  
Tags: <civicontribute><civimember><authorize.net>
Title: How can I increase the amount an existing monthly sustainer is giving?
ThreadText: # How can I increase the amount an existing monthly sustainer is giving?
  
  (Asked by: username_0 on 2016-08-14)
  
  We're on CiviCRM 4.6.19, Drupal 7.50 and we use Authorize.net for payment processing.
  
  If I simply want to increase the amount an existing monthly sustainer is giving, should I be able to do that by changing the monthly "subscription" amount in Authorize before the next monthly transaction?
  
  Is there a recommended way to do this in CiviCRM itself?
  
  **Tags:** civicontribute, civimember, authorize.net
  
  
  ---
  
  ## 3 answers
  
  ### Answer by username_1 on 2016-08-14. Score: 5
  
  This won't work, because CiviCRM doesn't communicate with Authorize.Net regarding changes to recurring billing. Only token-based payment processors (e.g. iATS) do.
  
  While I can't answer specifically for Authorize.Net, in PayPal you can change the billing amount by no more than 20% every 6 months without entering new card info. You do this from the PayPal UI.
  
  > **Comments:**
  > **username_0**: Jon, thanks, Authorize doesn't communicate either way for a change in amount - to or from Civi? So only way to do an increase is to start a new monthly sustaining contribution/membership?  
  > **username_2**: Here's a link to my blog post about how iATS (token-based) payment processors differ from the Auth.net/paypal version: https://civicrm.org/blog/alan-dixon/recurring-payments-advanced-functions Note that iATS is not the only token-based payment processor for CiviCRM, but iATS is the only one that's funded development of it's plugin (and development of CiviCRM in general).  
  
  ---
  
  ### Answer by username_3 on 2016-08-15. Score: 3
  
  You'll need to cancel the transaction via Authorize.net's merchant portal, cancel the recurring contribution in civi, and create a new recurring gift.
  
  Civi can't do it all internally.
  
  
  ---
  
  ### Answer by username_4 on 2016-09-12. Score: 0
  
  Would this process not work? If not, please comment and give some feedback so that I can alter what I'm expecting.
  
  [Editing Recurring Contributions without user login](https://civicrm.stackexchange.com/questions/11339/resending-recurring-contributions-e-mail/14538#14538)
  
  
  ---
  
  