The following application programming interfaces (APIs) have been deprecated according to the API Lifecycle & Deprecation Policy.

• Attendees v1
• Attendees v1.1
• Attendees v2
• Attendee Types v1
• Authorization (Pre-2017)
• Expense Entry v1.1
  • Expense Entry Itemization
  • Expense Entry
• Expense Entry Attendee v2
• Expense Group Configuration v1.1
• Expense Report v1.1
  • Expense Report Header
  • Expense Reports List
  • Expense Report Full Details
  • Locations
• Expense Report v2
• Direct Connect - Hotel v1
  • Codes
  • Post an availability search
  • Post a booking rule search
  • Post a hotel search
  • Post a new reservation
  • Post a reservation cancellation
  • Post a reservation query
  • Post a reservation update
• Imaging v1
• List Item Web Service v1
  • List Item Web Service
  • List Resource
  • Get a list of lists
  • Post new list items
• Receipts v3
• Request v3
  • Request v3 Reference
  • Request v3 Explorer
  • Request v3.1 Explorer
• Travel Web Service v1
  • Profile Resource
• Trip Approval v1