Both process transactions over a predetermined length of time but the installment option allows the user to choose the total in the beginning of the transaction, whereas the sustaining gift has the user choose the recurring gift amount and then determine the length of time to give. This behavior is determined based on which Giving Pattern data element you have selected in your donation form.
  1. Select Fundraising > Donation Management
  2. Select All Donation Forms
  3. Find the donation form and click Edit
  4. Click 3. Design Donor Screens
  5. Click Edit next to Donation Form
  6. Look at the selected data elements on the right and note which giving pattern you have selected
    • Flexible Sustainer Donation Level (Sustaining gifts)
    • Installment Plan Donation Level (Installment gifts)