To turn off recurring gifts site-wide, you may uncheck "Support recurring transactions" for each merchant account. To do so, please navigate to the following: 
  1. Select Setup > Payment Capabilities 
  2. Click Edit beside the Merchant Account name
  3. Click on Step 2. Merchant Details
  4. Unmark the box for "Support recurring transactions"
  5. Repeat steps 2-4 for each additional Merchant Account (if applicable)
  6. Click Save to save your changes

Note: This will not retroactively cancel sustaining gifts that have already been set up in Luminate Online. For more information about cancelling sustaining gifts already in existence, please contact Support and reference this article.