feat(freight-backoffice): EIMS cancel/receipt/memo actions in filing card

Adds cancel, sales/withholding receipt filing + listing + PDF download, and
credit/debit memo issuance to EimsFilingCard, each gated on its own
permission.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/edr-freight-web/backoffice/src/components/invoices/EimsFilingCard.tsx

@@ -1,11 +1,30 @@
-import { Alert, Badge, Button, Card, Group, SimpleGrid, Stack, Text } from "@mantine/core";
+import { useState } from "react";
+import {
+  Alert,
+  Badge,
+  Button,
+  Card,
+  Group,
+  Modal,
+  NumberInput,
+  Radio,
+  Select,
+  SimpleGrid,
+  Stack,
+  Table,
+  Text,
+  Textarea,
+  TextInput,
+} from "@mantine/core";
 import { useMutation, useQuery } from "@tanstack/react-query";
-import { AlertTriangle, RefreshCw, Send, ShieldCheck } from "lucide-react";
+import { AlertTriangle, Ban, Download, FileText, RefreshCw, Send, ShieldCheck } from "lucide-react";
 
 import { useAuth } from "@/auth/useAuth";
 import { FREIGHT_PERMS, hasPermission } from "@/lib/permissions";
 import { api } from "@/services/api";
-import type { EimsInvoiceStatus } from "@/types/eims";
+import { eimsService } from "@/services/eims.service";
+import { openPdfBlob } from "@/components/warehouses/pdf";
+import { EIMS_MODE_OF_PAYMENT, type EimsInvoiceStatus, type EimsModeOfPayment } from "@/types/eims";
 import { useToast } from "@/hooks/use-toast";
 
 const STATUS_COLOR: Record<EimsInvoiceStatus, string> = {
@@ -14,6 +33,7 @@ const STATUS_COLOR: Record<EimsInvoiceStatus, string> = {
   REGISTERED: "edr-green",
   FAILED: "red",
   UNKNOWN: "orange",
+  CANCELLED: "gray",
 };
 
 const STATUS_LABEL: Record<EimsInvoiceStatus, string> = {
@@ -22,6 +42,7 @@ const STATUS_LABEL: Record<EimsInvoiceStatus, string> = {
   REGISTERED: "Filed",
   FAILED: "Rejected",
   UNKNOWN: "Unacknowledged",
+  CANCELLED: "Cancelled",
 };
 
 function Field({ label, value }: { label: string; value?: string | number | null }) {
@@ -37,6 +58,367 @@ function Field({ label, value }: { label: string; value?: string | number | null
   );
 }
 
+/** Reason codes from the collection docs, e.g. "1" (Duplicate), "6" (Calculation Error). */
+const CANCEL_REASON_CODES = [
+  { value: "1", label: "1 — Duplicate" },
+  { value: "2", label: "2 — Buyer request" },
+  { value: "3", label: "3 — Data entry error" },
+  { value: "6", label: "6 — Calculation error" },
+];
+
+function CancelModal({
+  invoiceId,
+  opened,
+  onClose,
+}: {
+  invoiceId: string;
+  opened: boolean;
+  onClose: () => void;
+}) {
+  const { toast } = useToast();
+  const [reasonCode, setReasonCode] = useState<string | null>(null);
+  const [remark, setRemark] = useState("");
+
+  const cancel = useMutation(
+    api.invoices.eimsCancel.mutationOptions({
+      onSuccess: () => {
+        onClose();
+        toast({ title: "Cancelled with MoR" });
+      },
+      onError: (error) => toast({ title: "Could not cancel", description: error.message, variant: "destructive" }),
+    }),
+  );
+
+  return (
+    <Modal opened={opened} onClose={onClose} title="Cancel EIMS registration" centered>
+      <Stack gap="md">
+        <Text size="sm" c="dimmed">
+          Cancels this invoice&apos;s registered document at MoR. Irreversible — an already-cancelled
+          invoice refuses a second attempt.
+        </Text>
+        <Select
+          label="Reason code"
+          withAsterisk
+          data={CANCEL_REASON_CODES}
+          value={reasonCode}
+          onChange={setReasonCode}
+          placeholder="Select a reason"
+        />
+        <Textarea
+          label="Remark"
+          placeholder="Optional note"
+          value={remark}
+          onChange={(e) => setRemark(e.currentTarget.value)}
+          autosize
+          minRows={2}
+        />
+        <Button
+          color="red"
+          leftSection={<Ban size={16} />}
+          loading={cancel.isPending}
+          disabled={!reasonCode}
+          onClick={() => cancel.mutate({ id: invoiceId, reasonCode: reasonCode!, remark: remark.trim() || undefined })}
+        >
+          Cancel with MoR
+        </Button>
+      </Stack>
+    </Modal>
+  );
+}
+
+function SalesReceiptModal({
+  invoiceId,
+  opened,
+  onClose,
+}: {
+  invoiceId: string;
+  opened: boolean;
+  onClose: () => void;
+}) {
+  const { toast } = useToast();
+  const [modeOfPayment, setModeOfPayment] = useState<EimsModeOfPayment | null>(null);
+  const [collectedAmount, setCollectedAmount] = useState<number | "">("");
+  const [reason, setReason] = useState("");
+
+  const register = useMutation(
+    api.invoices.eimsRegisterSalesReceipt.mutationOptions({
+      onSuccess: (receipt) => {
+        onClose();
+        toast({ title: "Sales receipt filed", description: `RRN ${receipt.rrn ?? "—"}` });
+      },
+      onError: (error) => toast({ title: "Could not file receipt", description: error.message, variant: "destructive" }),
+    }),
+  );
+
+  return (
+    <Modal opened={opened} onClose={onClose} title="File sales receipt" centered>
+      <Stack gap="md">
+        <Select
+          label="Mode of payment"
+          withAsterisk
+          data={EIMS_MODE_OF_PAYMENT.map((v) => ({ value: v, label: v }))}
+          value={modeOfPayment}
+          onChange={(v) => setModeOfPayment(v as EimsModeOfPayment)}
+          placeholder="Select"
+        />
+        <NumberInput
+          label="Collected amount"
+          placeholder="Defaults to the invoice's paid amount"
+          min={0}
+          decimalScale={2}
+          value={collectedAmount}
+          onChange={(v) => setCollectedAmount(v === "" ? "" : Number(v))}
+        />
+        <TextInput
+          label="Reason"
+          placeholder='Defaults to "Payment received"'
+          value={reason}
+          onChange={(e) => setReason(e.currentTarget.value)}
+        />
+        <Button
+          color="edr-green"
+          leftSection={<Send size={16} />}
+          loading={register.isPending}
+          disabled={!modeOfPayment}
+          onClick={() =>
+            register.mutate({
+              id: invoiceId,
+              modeOfPayment: modeOfPayment!,
+              collectedAmount: collectedAmount === "" ? undefined : collectedAmount,
+              reason: reason.trim() || undefined,
+            })
+          }
+        >
+          File with MoR
+        </Button>
+      </Stack>
+    </Modal>
+  );
+}
+
+function WithholdingReceiptModal({
+  invoiceId,
+  opened,
+  onClose,
+}: {
+  invoiceId: string;
+  opened: boolean;
+  onClose: () => void;
+}) {
+  const { toast } = useToast();
+  const [type, setType] = useState("TWHT");
+  const [preTaxAmount, setPreTaxAmount] = useState<number | "">("");
+  const [withholdingAmount, setWithholdingAmount] = useState<number | "">("");
+  const [reason, setReason] = useState("");
+
+  const register = useMutation(
+    api.invoices.eimsRegisterWithholdingReceipt.mutationOptions({
+      onSuccess: (receipt) => {
+        onClose();
+        toast({ title: "Withholding receipt filed", description: `RRN ${receipt.rrn ?? "—"}` });
+      },
+      onError: (error) => toast({ title: "Could not file receipt", description: error.message, variant: "destructive" }),
+    }),
+  );
+
+  const valid = preTaxAmount !== "" && withholdingAmount !== "";
+
+  return (
+    <Modal opened={opened} onClose={onClose} title="File withholding receipt" centered>
+      <Stack gap="md">
+        <TextInput label="Type" withAsterisk value={type} onChange={(e) => setType(e.currentTarget.value)} />
+        <NumberInput
+          label="Pre-tax amount"
+          withAsterisk
+          min={0}
+          decimalScale={2}
+          value={preTaxAmount}
+          onChange={(v) => setPreTaxAmount(v === "" ? "" : Number(v))}
+        />
+        <NumberInput
+          label="Withholding amount"
+          withAsterisk
+          min={0}
+          decimalScale={2}
+          value={withholdingAmount}
+          onChange={(v) => setWithholdingAmount(v === "" ? "" : Number(v))}
+        />
+        <TextInput
+          label="Reason"
+          placeholder='Defaults to "Withholding"'
+          value={reason}
+          onChange={(e) => setReason(e.currentTarget.value)}
+        />
+        <Button
+          color="edr-green"
+          leftSection={<Send size={16} />}
+          loading={register.isPending}
+          disabled={!valid}
+          onClick={() =>
+            register.mutate({
+              id: invoiceId,
+              type,
+              preTaxAmount: preTaxAmount as number,
+              withholdingAmount: withholdingAmount as number,
+              reason: reason.trim() || undefined,
+            })
+          }
+        >
+          File with MoR
+        </Button>
+      </Stack>
+    </Modal>
+  );
+}
+
+function MemoModal({
+  invoiceId,
+  opened,
+  onClose,
+}: {
+  invoiceId: string;
+  opened: boolean;
+  onClose: () => void;
+}) {
+  const { toast } = useToast();
+  const [type, setType] = useState<"CRE" | "DEB">("CRE");
+  const [reason, setReason] = useState("");
+
+  const issue = useMutation(
+    api.invoices.issueMemo.mutationOptions({
+      onSuccess: (memo) => {
+        onClose();
+        toast({ title: "Memo issued", description: `${memo.invoiceNumber} — file it with MoR separately` });
+      },
+      onError: (error) => toast({ title: "Could not issue memo", description: error.message, variant: "destructive" }),
+    }),
+  );
+
+  return (
+    <Modal opened={opened} onClose={onClose} title="Issue credit/debit memo" centered>
+      <Stack gap="md">
+        <Text size="sm" c="dimmed">
+          Creates a new invoice linked to this one, with every line copied verbatim. Filing it with
+          MoR is a separate step — it does not happen automatically here.
+        </Text>
+        <Radio.Group value={type} onChange={(v) => setType(v as "CRE" | "DEB")} label="Type">
+          <Stack gap="xs" mt="xs">
+            <Radio value="CRE" label="Credit memo" description="Reduces what the buyer owes; created settled." />
+            <Radio value="DEB" label="Debit memo" description="An additional charge; created as a new open invoice." />
+          </Stack>
+        </Radio.Group>
+        <Textarea
+          label="Reason"
+          withAsterisk
+          placeholder="Why this memo is being issued"
+          value={reason}
+          onChange={(e) => setReason(e.currentTarget.value)}
+          autosize
+          minRows={2}
+        />
+        <Button
+          color="edr-green"
+          loading={issue.isPending}
+          disabled={!reason.trim()}
+          onClick={() => issue.mutate({ id: invoiceId, type, reason: reason.trim() })}
+        >
+          Issue memo
+        </Button>
+      </Stack>
+    </Modal>
+  );
+}
+
+function ReceiptsSection({ invoiceId, canFile }: { invoiceId: string; canFile: boolean }) {
+  const { toast } = useToast();
+  const { data: receipts } = useQuery(api.invoices.eimsReceipts.queryOptions({ input: { id: invoiceId } }));
+  const [salesOpen, setSalesOpen] = useState(false);
+  const [withholdingOpen, setWithholdingOpen] = useState(false);
+  const [downloadingId, setDownloadingId] = useState<string | null>(null);
+
+  const download = async (receiptId: string, receiptNumber: string) => {
+    setDownloadingId(receiptId);
+    try {
+      const { data } = await eimsService.downloadReceiptDocument(invoiceId, receiptId);
+      openPdfBlob(data, `${receiptNumber}.pdf`);
+    } catch (error) {
+      toast({
+        title: "Could not download receipt",
+        description: error instanceof Error ? error.message : undefined,
+        variant: "destructive",
+      });
+    } finally {
+      setDownloadingId(null);
+    }
+  };
+
+  return (
+    <Stack gap="sm">
+      <Group justify="space-between">
+        <Text fw={600} size="sm" c="edr-text">
+          Receipts
+        </Text>
+        {canFile && (
+          <Group gap="xs">
+            <Button size="xs" variant="light" onClick={() => setSalesOpen(true)}>
+              File sales receipt
+            </Button>
+            <Button size="xs" variant="light" onClick={() => setWithholdingOpen(true)}>
+              File withholding receipt
+            </Button>
+          </Group>
+        )}
+      </Group>
+
+      {receipts && receipts.length > 0 ? (
+        <Table striped withTableBorder={false} verticalSpacing="xs">
+          <Table.Thead>
+            <Table.Tr>
+              <Table.Th>Kind</Table.Th>
+              <Table.Th>Status</Table.Th>
+              <Table.Th>RRN</Table.Th>
+              <Table.Th />
+            </Table.Tr>
+          </Table.Thead>
+          <Table.Tbody>
+            {receipts.map((r) => (
+              <Table.Tr key={r.id}>
+                <Table.Td>{r.kind}</Table.Td>
+                <Table.Td>
+                  <Badge color={STATUS_COLOR[r.status] ?? "gray"} variant="light" size="sm">
+                    {STATUS_LABEL[r.status] ?? r.status}
+                  </Badge>
+                </Table.Td>
+                <Table.Td style={{ fontFamily: "monospace" }}>{r.rrn ?? "—"}</Table.Td>
+                <Table.Td>
+                  {r.status === "REGISTERED" && (
+                    <Button
+                      size="xs"
+                      variant="subtle"
+                      leftSection={<Download size={14} />}
+                      loading={downloadingId === r.id}
+                      onClick={() => void download(r.id, r.receiptNumber)}
+                    >
+                      PDF
+                    </Button>
+                  )}
+                </Table.Td>
+              </Table.Tr>
+            ))}
+          </Table.Tbody>
+        </Table>
+      ) : (
+        <Text size="sm" c="dimmed">
+          No receipts filed yet.
+        </Text>
+      )}
+
+      <SalesReceiptModal invoiceId={invoiceId} opened={salesOpen} onClose={() => setSalesOpen(false)} />
+      <WithholdingReceiptModal invoiceId={invoiceId} opened={withholdingOpen} onClose={() => setWithholdingOpen(false)} />
+    </Stack>
+  );
+}
+
 /**
  * MoR EIMS filing state for one invoice, with the manual actions.
  *
@@ -48,6 +430,12 @@ export function EimsFilingCard({ invoiceId }: { invoiceId: string }) {
   const { user } = useAuth();
   const { toast } = useToast();
   const canFile = hasPermission(user, FREIGHT_PERMS.invoices.eimsRegister);
+  const canCancel = hasPermission(user, FREIGHT_PERMS.invoices.eimsCancel);
+  const canFileReceipt = hasPermission(user, FREIGHT_PERMS.invoices.eimsReceiptRegister);
+  const canIssueMemo = hasPermission(user, FREIGHT_PERMS.invoices.memoIssue);
+
+  const [cancelOpen, setCancelOpen] = useState(false);
+  const [memoOpen, setMemoOpen] = useState(false);
 
   const { data: eims, isLoading } = useQuery(
     api.invoices.eimsStatus.queryOptions({ input: { id: invoiceId }, enabled: Boolean(invoiceId) }),
@@ -118,39 +506,78 @@ export function EimsFilingCard({ invoiceId }: { invoiceId: string }) {
           </Alert>
         )}
 
-        {canFile && (
-          <Group gap="sm">
-            {/* UNKNOWN is never re-filed from here: resubmitting risks a duplicate registration. */}
-            {status !== "REGISTERED" && status !== "UNKNOWN" && (
-              <Button
-                size="xs"
-                variant="light"
-                radius="md"
-                loading={register.isPending}
-                disabled={busy}
-                leftSection={status === "FAILED" ? <RefreshCw size={14} /> : <Send size={14} />}
-                onClick={() => register.mutate({ id: invoiceId })}
-              >
-                {status === "FAILED" ? "File again" : "File with MoR"}
-              </Button>
-            )}
-
-            {eims.eimsIrn && (
-              <Button
-                size="xs"
-                variant="light"
-                radius="md"
-                loading={verify.isPending}
-                disabled={busy}
-                leftSection={<ShieldCheck size={14} />}
-                onClick={() => verify.mutate({ id: invoiceId })}
-              >
-                Verify with MoR
-              </Button>
-            )}
-          </Group>
+        {status === "CANCELLED" && (
+          <Alert color="gray" icon={<Ban size={16} />} title="Cancelled with MoR">
+            {eims.eimsCancellationDate ? `Confirmed ${eims.eimsCancellationDate}. ` : ""}
+            {eims.eimsCancellationRemark}
+          </Alert>
         )}
+
+        <Group gap="sm">
+          {canFile && (
+            <>
+              {/* UNKNOWN is never re-filed from here: resubmitting risks a duplicate registration. */}
+              {status !== "REGISTERED" && status !== "UNKNOWN" && status !== "CANCELLED" && (
+                <Button
+                  size="xs"
+                  variant="light"
+                  radius="md"
+                  loading={register.isPending}
+                  disabled={busy}
+                  leftSection={status === "FAILED" ? <RefreshCw size={14} /> : <Send size={14} />}
+                  onClick={() => register.mutate({ id: invoiceId })}
+                >
+                  {status === "FAILED" ? "File again" : "File with MoR"}
+                </Button>
+              )}
+
+              {eims.eimsIrn && (
+                <Button
+                  size="xs"
+                  variant="light"
+                  radius="md"
+                  loading={verify.isPending}
+                  disabled={busy}
+                  leftSection={<ShieldCheck size={14} />}
+                  onClick={() => verify.mutate({ id: invoiceId })}
+                >
+                  Verify with MoR
+                </Button>
+              )}
+            </>
+          )}
+
+          {canCancel && eims.eimsIrn && status !== "CANCELLED" && (
+            <Button
+              size="xs"
+              variant="light"
+              color="red"
+              radius="md"
+              leftSection={<Ban size={14} />}
+              onClick={() => setCancelOpen(true)}
+            >
+              Cancel with MoR
+            </Button>
+          )}
+
+          {canIssueMemo && status === "REGISTERED" && (
+            <Button
+              size="xs"
+              variant="light"
+              radius="md"
+              leftSection={<FileText size={14} />}
+              onClick={() => setMemoOpen(true)}
+            >
+              Issue credit/debit memo
+            </Button>
+          )}
+        </Group>
+
+        {eims.eimsIrn && <ReceiptsSection invoiceId={invoiceId} canFile={canFileReceipt} />}
       </Stack>
+
+      <CancelModal invoiceId={invoiceId} opened={cancelOpen} onClose={() => setCancelOpen(false)} />
+      <MemoModal invoiceId={invoiceId} opened={memoOpen} onClose={() => setMemoOpen(false)} />
     </Card>
   );
 }

apps/edr-freight-web/backoffice/src/constants/QUERY_KEYS.ts

@@ -96,6 +96,7 @@ export const QUERY_KEYS = {
     offlineUsd: (filter?: InvoiceListFilter) =>
       ["invoices", "offline-usd", filter ?? {}] as const,
     eimsStatus: (id: string) => ["invoices", "eims", id] as const,
+    eimsReceipts: (id: string) => ["invoices", "eims", id, "receipts"] as const,
   },
 
   BOOKINGS: {

apps/edr-freight-web/backoffice/src/constants/URLS.ts

@@ -136,6 +136,7 @@ export const URL_CONSTANTS = {
     INVOICES: "/billing/invoices",
     INVOICE_BY_ID: (id: string) => `/billing/invoices/${id}`,
     INVOICE_DOCUMENT: (id: string) => `/billing/invoices/${id}/document`,
+    INVOICE_MEMO: (id: string) => `/billing/invoices/${id}/memo`,
     OFFLINE_USD: "/billing/offline-usd",
     CONFIRM_OFFLINE: (id: string) => `/billing/invoices/${id}/confirm-offline`,
   },
@@ -146,6 +147,12 @@ export const URL_CONSTANTS = {
     REGISTER: (id: string) => `/invoices/${id}/eims/register`,
     VERIFY: (id: string) => `/invoices/${id}/eims/verify`,
     RESOLVE: (id: string) => `/invoices/${id}/eims/resolve`,
+    CANCEL: (id: string) => `/invoices/${id}/eims/cancel`,
+    RECEIPT_SALES: (id: string) => `/invoices/${id}/eims/receipt/sales`,
+    RECEIPT_WITHHOLDING: (id: string) => `/invoices/${id}/eims/receipt/withholding`,
+    RECEIPTS: (id: string) => `/invoices/${id}/eims/receipts`,
+    RECEIPT_DOCUMENT: (id: string, receiptId: string) =>
+      `/invoices/${id}/eims/receipts/${receiptId}/document`,
   },
 
   CUSTOMERS_API: {

apps/edr-freight-web/backoffice/src/lib/permissions.ts

@@ -145,10 +145,16 @@ export const FREIGHT_PERMS = {
     view: "edr_freight_app:invoices:view",
     export: "edr_freight_app:invoices:export",
     confirmOffline: "edr_freight_app:invoices:confirm_offline",
-    // Filing with MoR EIMS. Held by named admins rather than a role preset: registration is
-    // irreversible at the tax authority, and resolving clears a system-wide filing block.
+    // Filing with MoR EIMS. Off the general Finance role — automatic filing needs no permission
+    // at all (the cron sweep runs as the system); these are the manual, exceptional-operations
+    // actions, granted to the `chief` position (maker-checker, same as shipping-line credit
+    // mark-paid/cancel approval) rather than every Finance user.
     eimsRegister: "edr_freight_app:invoices:eims_register",
     eimsResolve: "edr_freight_app:invoices:eims_resolve",
+    eimsCancel: "edr_freight_app:invoices:eims_cancel",
+    eimsReceiptRegister: "edr_freight_app:invoices:eims_receipt_register",
+    // Issuing a credit/debit memo is filing-equivalent — same restricted grant as the eims_* keys.
+    memoIssue: "edr_freight_app:invoices:memo_issue",
   },
   firstMile: {
     view: "edr_freight_app:first_mile:view",

apps/edr-freight-web/backoffice/src/services/api.ts

@@ -173,7 +173,7 @@ import { customersService } from "./customers.service";
 import { shippingLineCompaniesService } from "./shippingLineCompanies.service";
 import { shippingLineCreditsService } from "./shippingLineCredits.service";
 import { eimsService } from "./eims.service";
-import type { EimsInvoiceStatusView, EimsVerifyResult } from "@/types/eims";
+import type { EimsInvoiceStatusView, EimsModeOfPayment, EimsReceiptView, EimsVerifyResult } from "@/types/eims";
 import { invoicesService } from "./invoices.service";
 import { dropdownSettingsService } from "./dropdownSettings.service";
 import { fileUploadSettingsService } from "./fileUploadSettings.service";
@@ -3189,6 +3189,51 @@ export const api = {
       undefined,
       ({ id }) => [QUERY_KEYS.INVOICES.eimsStatus(id), QUERY_KEYS.INVOICES.byId(id)],
     ),
+
+    eimsCancel: endpoint<{ id: string; reasonCode: string; remark?: string }, EimsInvoiceStatusView>(
+      "invoices",
+      "eimsCancel",
+      ({ id, reasonCode, remark }) => eimsService.cancel(id, { reasonCode, remark }),
+      undefined,
+      ({ id }) => [QUERY_KEYS.INVOICES.eimsStatus(id), QUERY_KEYS.INVOICES.byId(id)],
+    ),
+
+    eimsReceipts: endpoint<{ id: string }, EimsReceiptView[]>(
+      "invoices",
+      "eimsReceipts",
+      ({ id }) => eimsService.listReceipts(id),
+      ({ id }) => QUERY_KEYS.INVOICES.eimsReceipts(id),
+    ),
+
+    eimsRegisterSalesReceipt: endpoint<
+      { id: string; modeOfPayment: EimsModeOfPayment; reason?: string; collectedAmount?: number },
+      EimsReceiptView
+    >(
+      "invoices",
+      "eimsRegisterSalesReceipt",
+      ({ id, ...input }) => eimsService.registerSalesReceipt(id, input),
+      undefined,
+      ({ id }) => [QUERY_KEYS.INVOICES.eimsReceipts(id)],
+    ),
+
+    eimsRegisterWithholdingReceipt: endpoint<
+      { id: string; type: string; preTaxAmount: number; withholdingAmount: number; reason?: string },
+      EimsReceiptView
+    >(
+      "invoices",
+      "eimsRegisterWithholdingReceipt",
+      ({ id, ...input }) => eimsService.registerWithholdingReceipt(id, input),
+      undefined,
+      ({ id }) => [QUERY_KEYS.INVOICES.eimsReceipts(id)],
+    ),
+
+    issueMemo: endpoint<{ id: string; type: "CRE" | "DEB"; reason: string }, Invoice>(
+      "invoices",
+      "issueMemo",
+      ({ id, ...input }) => invoicesService.issueMemo(id, input),
+      undefined,
+      () => [QUERY_KEYS.INVOICES.ROOT],
+    ),
   },
 
   overview: {

apps/edr-freight-web/backoffice/src/services/eims.service.ts

@@ -1,6 +1,11 @@
 import { api as apiClient } from "@/auth/http";
 import { URL_CONSTANTS } from "@/constants/URLS";
-import type { EimsInvoiceStatusView, EimsVerifyResult } from "@/types/eims";
+import type {
+  EimsInvoiceStatusView,
+  EimsModeOfPayment,
+  EimsReceiptView,
+  EimsVerifyResult,
+} from "@/types/eims";
 
 /**
  * MoR EIMS filing actions on an invoice.
@@ -36,4 +41,45 @@ export const eimsService = {
       .post<EimsInvoiceStatusView>(URL_CONSTANTS.EIMS.RESOLVE(invoiceId), input)
       .then((r) => r.data);
   },
+
+  /** Cancel the invoice's registered EIMS document. Refuses (409) an already-cancelled one. */
+  cancel(
+    invoiceId: string,
+    input: { reasonCode: string; remark?: string },
+  ): Promise<EimsInvoiceStatusView> {
+    return apiClient
+      .post<EimsInvoiceStatusView>(URL_CONSTANTS.EIMS.CANCEL(invoiceId), input)
+      .then((r) => r.data);
+  },
+
+  registerSalesReceipt(
+    invoiceId: string,
+    input: { modeOfPayment: EimsModeOfPayment; reason?: string; collectedAmount?: number },
+  ): Promise<EimsReceiptView> {
+    return apiClient
+      .post<EimsReceiptView>(URL_CONSTANTS.EIMS.RECEIPT_SALES(invoiceId), input)
+      .then((r) => r.data);
+  },
+
+  registerWithholdingReceipt(
+    invoiceId: string,
+    input: { type: string; preTaxAmount: number; withholdingAmount: number; reason?: string },
+  ): Promise<EimsReceiptView> {
+    return apiClient
+      .post<EimsReceiptView>(URL_CONSTANTS.EIMS.RECEIPT_WITHHOLDING(invoiceId), input)
+      .then((r) => r.data);
+  },
+
+  listReceipts(invoiceId: string): Promise<EimsReceiptView[]> {
+    return apiClient
+      .get<EimsReceiptView[]>(URL_CONSTANTS.EIMS.RECEIPTS(invoiceId))
+      .then((r) => r.data);
+  },
+
+  /** Blob download — same pattern as `invoicesService.downloadDocument`. */
+  downloadReceiptDocument(invoiceId: string, receiptId: string) {
+    return apiClient.get<Blob>(URL_CONSTANTS.EIMS.RECEIPT_DOCUMENT(invoiceId, receiptId), {
+      responseType: "blob",
+    });
+  },
 };

apps/edr-freight-web/backoffice/src/services/invoices.service.ts

@@ -35,6 +35,16 @@ export const invoicesService = {
     });
   },
 
+  /** Issue a credit/debit memo against a registered invoice (MoR DEB/CRE) — filing-equivalent. */
+  issueMemo(
+    id: string,
+    input: { type: "CRE" | "DEB"; reason: string },
+  ): Promise<Invoice> {
+    return apiClient
+      .post<Invoice>(URL_CONSTANTS.BILLING.INVOICE_MEMO(id), input)
+      .then((r) => r.data);
+  },
+
   /** Finance worklist: USD invoices awaiting bank-transfer confirmation. */
   listOfflineUsd(
     filter: InvoiceListFilter,

apps/edr-freight-web/backoffice/src/types/eims.ts

@@ -65,3 +65,16 @@ export interface EimsVerifyResult {
     [section: string]: unknown;
   };
 }
+
+/** MoR `ModeOfPayment` enum — confirmed by a live schema error, verbatim spelling/casing. */
+export const EIMS_MODE_OF_PAYMENT = [
+  "CASH",
+  "CHEQUE",
+  "CPO",
+  "Local Bank Transfer",
+  "SWIFT",
+  "Wire Transfer",
+  "Letter of Credit",
+  "Card",
+] as const;
+export type EimsModeOfPayment = (typeof EIMS_MODE_OF_PAYMENT)[number];