---
title: Override due date
summary: How an internal updater overrides the statement due date.
status: generated
owner: SAIF Case Management
last_reviewed: 2026-10-20
---

# Override due date

## Steps

1. An internal updater picks a date within the limits the date picker allows ([BR-SCR-002](../business-rules.md#br-scr-002)). Only the client enforces the window.
2. The form posts to the due-date handler with no anti-forgery token ([BR-APP-006](../business-rules.md#br-app-006)). The handler checks no role (TD-APP-003) and parses the date with `DateTime.Parse` (TD-APP-008).
3. The handler calls `PopulateModel` with the parsed date, which calls the due-date update of `NDReimbursementAPI.Client` (known from the call site; package internals are unknown**), sets `DueDateSuccess`, and then loads the statement with the user checks ([BR-APP-002](../business-rules.md#br-app-002), [BR-APP-003](../business-rules.md#br-app-003)).
4. A parse failure or an update failure is caught by the handler (the update failure is rethrown inside `PopulateModel` first). The handler logs it, sets `IsSuccessful` to false and the message "An error has occurred while updating due date", and re-renders the page; the message is displayed only if the view condition `!IsSuccessful && !HasPolicyNumber` holds.
5. The new due date applies at 18:00 ([BR-SCR-001](../business-rules.md#br-scr-001)).

## Process flow

The diagram shows the due-date update and the caught-failure path that sets error state and re-renders the page.

```mermaid
flowchart TD
    A["Pick date"] --> B["POST DueDate"]
    B --> C["Parse date"]
    C -- "Parse error" --> X["Log, set error message, re-render page"]
    C --> D["UpdateDueDate via API client"]
    D -- "Exception rethrown, caught by handler" --> X
    D --> E["Repopulate and render"]
```

> **Note:** Statements marked with `**` could
> not be confirmed; treat as unknown until verified.

## Related documentation
- [Application index](../index.md)
- [Operations and processes](../operations-processes.md)
- [Business rules](../business-rules.md)
- [Tech debt](../tech-debt.md)

## Sources
- src/NDReimbursementWebApp/Pages/NDReimbursement.cshtml.cs
- src/NDReimbursementWebApp/wwwroot/js/DatePicker.js