diff --git a/apps/portal/components/partner/CustomerTaskPanel.vue b/apps/portal/components/partner/CustomerTaskPanel.vue
index 3f287f2..9fa0bcb 100644
--- a/apps/portal/components/partner/CustomerTaskPanel.vue
+++ b/apps/portal/components/partner/CustomerTaskPanel.vue
@@ -3,7 +3,7 @@
 // Pre-fills notes from the health drivers and lets the partner tweak before
 // creating the task.
 
-import type { CustomerOrg } from '~/data/customers'
+import type { CustomerOrg } from '~/types/partner'
 
 export interface TaskContext {
   customer: CustomerOrg
diff --git a/apps/portal/components/partner/EnterCustomerConfirmModal.vue b/apps/portal/components/partner/EnterCustomerConfirmModal.vue
index 22d42d6..320b328 100644
--- a/apps/portal/components/partner/EnterCustomerConfirmModal.vue
+++ b/apps/portal/components/partner/EnterCustomerConfirmModal.vue
@@ -4,7 +4,7 @@
 // customer org will be logged under their partner identity, and prompts for
 // an optional (but recommended) reason — captured into the customer audit log.
 
-import type { CustomerOrg } from '~/data/customers'
+import type { CustomerOrg } from '~/types/partner'
 
 const props = defineProps<{ customer: CustomerOrg | null }>()
 const emit = defineEmits<{ close: []; confirm: [reason: string] }>()
diff --git a/apps/portal/composables/usePartnerMode.ts b/apps/portal/composables/usePartnerMode.ts
index b7c03fc..3cfac08 100644
--- a/apps/portal/composables/usePartnerMode.ts
+++ b/apps/portal/composables/usePartnerMode.ts
@@ -6,7 +6,7 @@
 // identity (not the customer's) — the design spec is explicit about this for
 // trust. For the prototype we just hold the customer id.
 
-import type { CustomerOrg } from '~/data/customers'
+import type { CustomerOrg } from '~/types/partner'
 
 const activeCustomerId = ref<string | null>(null)
 
diff --git a/apps/portal/composables/usePartnerMrr.ts b/apps/portal/composables/usePartnerMrr.ts
new file mode 100644
index 0000000..dfb4d84
--- /dev/null
+++ b/apps/portal/composables/usePartnerMrr.ts
@@ -0,0 +1,51 @@
+// Shared fetch + derivations for partner MRR from /api/partner/mrr
+// (platform-api /me/partner/mrr). Like usePartnerTenants, the dashboard,
+// customers, and billing pages all read this under the 'partner-mrr' key, so
+// one cached payload serves all of them. This composable also owns the
+// derivations that were duplicated per page: the per-tenant lookup Map and the
+// per-currency display totals (amounts are never FX-summed across currencies).
+//
+//   const { mrr, mrrByTenant, totalsDisplay, refresh } = usePartnerMrr()
+//
+// Synchronous (non-async) so `useFetch` runs in the caller's setup context even
+// when called after another await. Call WITHOUT await.
+
+import type { MrrBreakdownRow, MrrResponse } from '~/types/partner'
+
+export function usePartnerMrr() {
+  const { data: mrr, refresh, error, pending } = useFetch<MrrResponse>('/api/partner/mrr', {
+    key: 'partner-mrr',
+    default: () => ({ totals: [], breakdown: [] }),
+  })
+
+  // tenantId → its subscription's MRR row, for O(1) per-row lookups in the
+  // customers table without a second fetch.
+  const mrrByTenant = computed(() => {
+    const m = new Map<string, MrrBreakdownRow>()
+    for (const row of mrr.value?.breakdown ?? []) m.set(row.tenantId, row)
+    return m
+  })
+
+  // Per-currency totals in major units (minor / 100), e.g. { DKK: 55_750 }.
+  const totalsDisplay = computed(() =>
+    (mrr.value?.totals ?? []).map((t) => ({
+      currency: t.currency,
+      majorAmount: Math.round(t.monthlyMinor / 100),
+    })),
+  )
+
+  // Compact one-line summary, e.g. "55.750 DKK + 1.200 EUR / mo".
+  const totalsLine = computed(() => {
+    const parts = totalsDisplay.value.map(
+      (t) => `${t.majorAmount.toLocaleString('da-DK')} ${t.currency}`,
+    )
+    if (parts.length === 0) return '0 DKK / mo'
+    return parts.join(' + ') + ' / mo'
+  })
+
+  // True when any subscription is custom/Enterprise-priced (renders as
+  // "custom" rather than a misleading 0 in the totals).
+  const hasCustomPriced = computed(() => (mrr.value?.breakdown ?? []).some((b) => b.custom))
+
+  return { mrr, mrrByTenant, totalsDisplay, totalsLine, hasCustomPriced, refresh, error, pending }
+}
diff --git a/apps/portal/composables/usePartnerTenants.ts b/apps/portal/composables/usePartnerTenants.ts
new file mode 100644
index 0000000..76dcac8
--- /dev/null
+++ b/apps/portal/composables/usePartnerTenants.ts
@@ -0,0 +1,21 @@
+// Shared fetch of the signed-in partner's customer tenants from
+// /api/partner/tenants (platform-api /me/partner/tenants). Several pages need
+// this list — dashboard, customers, and (later) billing — and they all key the
+// fetch as 'partner-tenants', so Nuxt dedupes to a single round-trip and shared
+// payload. Centralizing it here removes the divergent inline PartnerTenantDoc
+// copies that drifted between pages.
+//
+// Synchronous (non-async) so `useFetch` is invoked directly in the caller's
+// setup context — safe to call after another `await` in setup, unlike an async
+// wrapper. Call WITHOUT await:
+//   const { tenants, refresh } = usePartnerTenants()
+
+import type { PartnerTenantDoc } from '~/types/partner'
+
+export function usePartnerTenants() {
+  const { data: tenants, refresh, error, pending } = useFetch<PartnerTenantDoc[]>(
+    '/api/partner/tenants',
+    { key: 'partner-tenants', default: () => [] },
+  )
+  return { tenants, refresh, error, pending }
+}
diff --git a/apps/portal/data/customers.ts b/apps/portal/data/customers.ts
index 8c898dd..02696c6 100644
--- a/apps/portal/data/customers.ts
+++ b/apps/portal/data/customers.ts
@@ -2,23 +2,9 @@
 // orgs. Numbers seeded to match partner-screens.jsx (the canonical design
 // source) line for line: same customer set, same MRR, seats, status, mark.
 
-export type CustomerStatus = 'healthy' | 'attention' | 'past_due' | 'trial' | 'suspended'
-
-export interface CustomerOrg {
-  id: string
-  name: string
-  domain: string
-  plan: 'starter' | 'business' | 'enterprise'
-  planLabel: 'Starter' | 'Business' | 'Enterprise'
-  seats: { used: number; total: number }
-  health: number
-  status: CustomerStatus
-  mrrDkk: number
-  brandColor: string
-  industry: string
-  createdOn: string
-  since: string
-}
+// Types moved to ~/types/partner so the fixture *data* below can be deleted
+// page-by-page (as each goes real) without breaking type-only importers.
+import type { CustomerOrg } from '~/types/partner'
 
 export const partner = {
   id: 'p-nordicmsp',
diff --git a/apps/portal/types/partner.ts b/apps/portal/types/partner.ts
new file mode 100644
index 0000000..ad8518c
--- /dev/null
+++ b/apps/portal/types/partner.ts
@@ -0,0 +1,85 @@
+// Shared partner-domain types. These were previously coupled to the fixture
+// module (data/customers.ts), which blocked deleting the mock data without
+// breaking every type-only import. Living here, the types outlive the
+// fixtures: pages and composables import from `~/types/partner`, and the
+// fixture data exports can be removed page-by-page as each one goes real.
+
+// Currencies the platform prices in. Subscriptions are always reported
+// per-currency (never FX-summed), so this propagates through MRR + billing.
+export type Currency = 'DKK' | 'EUR' | 'USD'
+
+// Display status for a customer org in the partner UI. Broader than the
+// backend Tenant.status enum (active/pending/suspended/deleted) — it also
+// carries billing-derived states (past_due, trial, attention) that the
+// partner screens distinguish. Mapping from real Tenant data happens in the
+// page/composable layer.
+export type CustomerStatus = 'healthy' | 'attention' | 'past_due' | 'trial' | 'suspended'
+
+// The shape the partner customer screens render. Originally a pure fixture
+// type; retained as the view-model the table/cards bind to while real data
+// is mapped onto it.
+export interface CustomerOrg {
+  id: string
+  name: string
+  domain: string
+  plan: 'starter' | 'business' | 'enterprise'
+  planLabel: 'Starter' | 'Business' | 'Enterprise'
+  seats: { used: number; total: number }
+  health: number
+  status: CustomerStatus
+  mrrDkk: number
+  brandColor: string
+  industry: string
+  createdOn: string
+  since: string
+}
+
+// Canonical shape of a tenant as returned by /api/partner/tenants
+// (platform-api /me/partner/tenants). Previously duplicated — and subtly
+// divergent — between the dashboard and customers pages. This superset is the
+// single source of truth; `usePartnerTenants` returns it.
+export interface PartnerTenantDoc {
+  _id: string
+  slug: string
+  name: string
+  status: 'active' | 'pending' | 'suspended' | 'deleted'
+  plan?: 'mvp' | 'pro' | 'enterprise'
+  seats?: number
+  // Active User docs whose tenantIds include this tenant — server-side
+  // aggregation, so the "used / total" seats column needs no second fetch.
+  userCount?: number
+  // Active users created in the last 30 days (for the dashboard delta).
+  newUserCount30d?: number
+  domains?: string[]
+  createdAt?: string
+  // Partner-editable customer metadata.
+  industry?: string
+  brandColor?: string
+  // Computed server-side (never stored): 0–100 portfolio-health score + band.
+  healthScore?: number
+  healthBand?: 'healthy' | 'watch' | 'at-risk'
+  provisioningStatus?: {
+    authentik?: 'pending' | 'ok' | 'error' | 'skipped'
+    stalwart?: 'pending' | 'ok' | 'error' | 'skipped'
+    ocis?: 'pending' | 'ok' | 'error' | 'skipped'
+  }
+}
+
+// One subscription's normalized monthly amount, in minor units (e.g. 4900 =
+// 49.00). `custom: true` marks Enterprise / pre-catalog subs with no priced
+// amount — those render as "custom" rather than a misleading 0.
+export interface MrrBreakdownRow {
+  tenantId: string
+  tenantName?: string
+  currency: Currency
+  monthlyMinor: number
+  custom: boolean
+}
+
+// Response of /api/partner/mrr. Totals are grouped by currency so a partner
+// with mixed-currency customers sees a per-currency total, not an FX-fudged
+// single number.
+export interface MrrResponse {
+  totals: Array<{ currency: Currency; monthlyMinor: number }>
+  breakdown: MrrBreakdownRow[]
+}