Expense Digest Notifications in 26C and Touchless Expenses

We are evaluating Expense Digest Notifications for a client requirement and would appreciate clarification on the supported scenarios.

Could you please confirm:

• What events trigger Expense Digest Notifications?
• Does the digest include reminders for unsubmitted expense reports, unassigned corporate card transactions, and missing/overdue receipts?
• Are notifications supported for Electronic Receipt Processing (expenses created from emailed receipts, pending actions, or processing failures)?
• In Touchless Expenses, are there any digest notifications related to auto-created or auto-submitted expense reports?
• Are there any known limitations or changes in 26C, particularly for Touchless Expenses and Electronic Receipt Processing?

Any documentation outlining the supported scenarios and limitations would be greatly appreciated.