diff --git a/apps/edr-freight-api/src/modules/first-mile/first-mile.controller.ts b/apps/edr-freight-api/src/modules/first-mile/first-mile.controller.ts
index 928882a7f..49175a6f3 100644
--- a/apps/edr-freight-api/src/modules/first-mile/first-mile.controller.ts
+++ b/apps/edr-freight-api/src/modules/first-mile/first-mile.controller.ts
@@ -1,4 +1,5 @@
 import {
+  BadRequestException,
   Body,
   Controller,
   Delete,
@@ -93,7 +94,13 @@ export class FirstMileController {
   @ApiOperation({ summary: 'Generate the first-mile delivery-fee invoice' })
   async generateInvoice(@Param('id', ParseUUIDPipe) id: string) {
     const record = await this.firstMileService.findById(id);
-    return this.firstMileInvoiceService.ensureInvoiceFor(record);
+    const invoice = await this.firstMileInvoiceService.ensureInvoiceFor(record);
+    if (!invoice) {
+      throw new BadRequestException(
+        'Cannot generate invoice: the leg has no billable amount. Add distance and ensure a FIRST_MILE rate is configured, and the booking has a company.',
+      );
+    }
+    return invoice;
   }
 
   @Delete(':id')
diff --git a/apps/edr-freight-api/src/modules/last-mile/last-mile.controller.ts b/apps/edr-freight-api/src/modules/last-mile/last-mile.controller.ts
index 0b2ec1dbe..2931a1f85 100644
--- a/apps/edr-freight-api/src/modules/last-mile/last-mile.controller.ts
+++ b/apps/edr-freight-api/src/modules/last-mile/last-mile.controller.ts
@@ -1,4 +1,5 @@
 import {
+  BadRequestException,
   Body,
   Controller,
   Delete,
@@ -118,6 +119,12 @@ export class LastMileController {
   @ApiOperation({ summary: 'Generate the delivery-fee invoice for a last-mile leg' })
   async generateInvoice(@Param('id', ParseUUIDPipe) id: string) {
     const record = await this.lastMileService.findById(id);
-    return this.lastMileInvoiceService.ensureInvoiceFor(record);
+    const invoice = await this.lastMileInvoiceService.ensureInvoiceFor(record);
+    if (!invoice) {
+      throw new BadRequestException(
+        'Cannot generate invoice: the leg has no billable amount. Add distance and ensure a LAST_MILE rate is configured, and the booking has a company.',
+      );
+    }
+    return invoice;
   }
 }
diff --git a/apps/edr-freight-api/src/seed/pricing-data.seeder.ts b/apps/edr-freight-api/src/seed/pricing-data.seeder.ts
index 14ccb3efb..aa3f2c9bb 100644
--- a/apps/edr-freight-api/src/seed/pricing-data.seeder.ts
+++ b/apps/edr-freight-api/src/seed/pricing-data.seeder.ts
@@ -415,6 +415,9 @@ private async seedWeightLimits(wlRepo: any, ctRepo: any): Promise<void> {
       { appliesTo: "OTHER", trigger: "REEFER", rateType: "REEFER_SURCHARGE", rateValue: 2, rateUnit: "PER_TON" },
       { appliesTo: "OTHER", trigger: "SHIPPING_LINE", rateType: "DOUBLE_HANDLING", rateValue: 100, rateUnit: "PER_CONTAINER" },
       { appliesTo: "OTHER", trigger: "CONSOLIDATION", rateType: "LASHING", rateValue: 50, rateUnit: "PER_CONTAINER" },
+      // ── First/last-mile road haulage (per km) — drives the mile invoices ──
+      { appliesTo: "OTHER", trigger: "ALWAYS", rateType: "FIRST_MILE", rateValue: 20, rateUnit: "PER_KM" },
+      { appliesTo: "OTHER", trigger: "ALWAYS", rateType: "LAST_MILE", rateValue: 25, rateUnit: "PER_KM" },
     ];
 
     // Idempotent: insert each canonical rate only if no row with the same