The Flexible Sustainer Donation Level doesn't have a setting to disable the One-time gift option, but it can be hidden using CSS. Follow the steps below to add the CSS to your form.
  1. Navigate to Fundraising > select Donation Management
  2. Select the All Donation Forms tab
  3. Search for your donation form
  4. Click Edit
  5. Navigate to step 3. Design Donor Screens
  6. Under Related Actions, click Customize Look and Feel
  7. Under option 2. Custom CSS, add the following CSS:
    • <style type="text/css">
      #level_flexiblegift_type_Row{
      display: none;
      }
      </style> 
  8. Click Finish
Disclaimer: Blackbaud provides programming examples for illustration only without warranty either expressed or implied including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes you are familiar with HTML/CSS/JavaScript and the tools used to create and modify this code. Blackbaud Customer Support may help explain where the code should live in the product, but we will not modify or assist you with modifying or troubleshooting these examples.