Administrative Web Interface (AWI)

The Administrative Web Interface (AWI) provides Ohio State faculty and staff a way to view charges related to services requested from OTDI – whether for one month or a span of multiple months – in PDF and Excel format.

Effective 2/1/24, OTDI is generating Workday Supplier Invoices per the university's Internal Order Billing (IOB) process on the first business day of each month.

  • Notes regarding standard Workday functionality with Internal Supplier Invoices:
    • Invoices with lines equal to or greater than $3,000.00 will require approval.
      • Please do not send back or deny these invoices. We cannot generate new or modified statements, so it's best to utilize Accounting Adjustments for worktag changes.
      • Please approve in a timely manner.
    • Invoices cannot be posted to a prior month.
      • We are unable to accommodate any requests to retroactively post invoices to a prior month.
    • Billing charges are now one month in arrears.
      • As an example, February charges will be on invoices for March 1, and will be posted in March.
    • Nothing has changed regarding our AWI.
      • AWI is still your main source of information for all the details behind any OTDI billing charge appearing in Workday.
  • Updating departmental worktags for future charges or any other inquiries regarding charges/credits can still be directed to
  • Billing charges from the OTDI prior to this change are in Workday under the journal source “OTDI Billing Charges.”
Outside of Ohio State?

If you have an OTDI business account and are not part of an Ohio State college or department, you can make a payment on your account using this payment link.

Contact for assistance.

Who Can Use the AWI?

The AWI is available to anyone with an Ohio State login (lastname.#) and is primarily used for specific purposes by the following groups:

Senior Fiscal Officers and Financial Analysts
  • Use as backup for reconciliation or to clarify charges associated with an OTDI statement.
  • Perform analysis of specific service charges for one month or over a period of time.
Technical Support Staff
  • Review variable usage charges for metered services such as virtual machines, backup, storage, power, etc.
Research Faculty
  • Review all related OTDI charges for a specific research project.