diff --git a/src/app/admin/clients/[id]/actions.ts b/src/app/admin/clients/[id]/actions.ts
index a5f66b5..4802d67 100644
--- a/src/app/admin/clients/[id]/actions.ts
+++ b/src/app/admin/clients/[id]/actions.ts
@@ -50,10 +50,17 @@ async function resolveEntity(id: string): Promise<{ projectId: string | null; pa
 
 // ── CLIENT CRUD ───────────────────────────────────────────────────────────────
 
+const emptyToNull = (v: unknown) => {
+  const s = typeof v === "string" ? v.trim() : "";
+  return s === "" ? null : s;
+};
+
 const clientSchema = z.object({
   name:       z.string().min(1, "Nome richiesto"),
   brand_name: z.string().min(1, "Brand name richiesto"),
   brief:      z.string(),
+  email:      z.string().optional().transform(emptyToNull),
+  phone:      z.string().optional().transform(emptyToNull),
   slug: z
     .string()
     .regex(/^[a-z0-9-]{3,50}$/, "Slug non valido (es. mario-rossi, min 3 max 50 caratteri)")
@@ -68,6 +75,8 @@ export async function updateClient(clientId: string, formData: FormData) {
     name:       formData.get("name"),
     brand_name: formData.get("brand_name"),
     brief:      formData.get("brief") ?? "",
+    email:      formData.get("email") ?? "",
+    phone:      formData.get("phone") ?? "",
     slug:       formData.get("slug") ?? "",
   });
   if (!parsed.success) throw new Error(parsed.error.issues[0].message);
diff --git a/src/app/admin/clients/[id]/edit/page.tsx b/src/app/admin/clients/[id]/edit/page.tsx
index 0cda1bb..357fbc4 100644
--- a/src/app/admin/clients/[id]/edit/page.tsx
+++ b/src/app/admin/clients/[id]/edit/page.tsx
@@ -62,6 +62,29 @@ export default async function EditClientPage({
           />
         </div>
 
+        <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
+          <div className="space-y-1.5">
+            <Label htmlFor="email">Email</Label>
+            <Input
+              id="email"
+              name="email"
+              type="email"
+              defaultValue={client.email ?? ""}
+              placeholder="marco@rossistudio.it"
+            />
+          </div>
+          <div className="space-y-1.5">
+            <Label htmlFor="phone">Telefono</Label>
+            <Input
+              id="phone"
+              name="phone"
+              type="tel"
+              defaultValue={client.phone ?? ""}
+              placeholder="+39 333 1234567"
+            />
+          </div>
+        </div>
+
         <div className="space-y-1.5">
           <Label htmlFor="brief">Brief progetto</Label>
           <Textarea
diff --git a/src/app/admin/clients/[id]/page.tsx b/src/app/admin/clients/[id]/page.tsx
index 97b9aa2..b3f8794 100644
--- a/src/app/admin/clients/[id]/page.tsx
+++ b/src/app/admin/clients/[id]/page.tsx
@@ -33,6 +33,21 @@ export default async function ClientDetailPage({
         <div>
           <h1 className="text-2xl font-bold text-[#1a1a1a]">{client.name}</h1>
           <p className="text-sm text-[#71717a]">{client.brand_name}</p>
+          {(client.email || client.phone) && (
+            <div className="mt-1 flex flex-wrap items-center gap-x-3 gap-y-0.5 text-xs text-[#71717a]">
+              {client.email && (
+                <a href={`mailto:${client.email}`} className="hover:text-[#1A463C]">
+                  {client.email}
+                </a>
+              )}
+              {client.email && client.phone && <span className="text-[#d4d4d8]">·</span>}
+              {client.phone && (
+                <a href={`tel:${client.phone}`} className="hover:text-[#1A463C]">
+                  {client.phone}
+                </a>
+              )}
+            </div>
+          )}
           {client.archived && (
             <span className="inline-block mt-1 text-xs font-medium bg-[#f4f4f5] text-[#71717a] px-2 py-0.5 rounded-full">
               Archiviato
diff --git a/src/app/admin/clients/new/actions.ts b/src/app/admin/clients/new/actions.ts
index c1f9b2b..6bb651f 100644
--- a/src/app/admin/clients/new/actions.ts
+++ b/src/app/admin/clients/new/actions.ts
@@ -44,62 +44,68 @@ const createClientSchema = z.object({
   name: z.string().min(1, "Nome richiesto"),
   brand_name: z.string().min(1, "Nome brand richiesto"),
   brief: z.string().min(1, "Brief richiesto"),
+  email: z.string().optional(),
+  phone: z.string().optional(),
 });
 
-export async function createClient(formData: FormData) {
-  await requireAdmin();
-  const raw = {
-    name: formData.get("name") as string,
-    brand_name: formData.get("brand_name") as string,
-    brief: formData.get("brief") as string,
-  };
+// Shared core used by both the manual create form and the lead→client
+// conversion. Creates the client (+ slug + token), a default project (optionally
+// linked to the originating lead), and the two 50/50 payment stubs. Returns the
+// new ids. Does NOT redirect — callers decide where to go next.
+export async function createClientCore(input: {
+  name: string;
+  brand_name: string;
+  brief: string;
+  email?: string | null;
+  phone?: string | null;
+  created_from_lead_id?: string | null;
+}): Promise<{ clientId: string; projectId: string }> {
+  const slug = await uniqueSlug(toSlug(input.name));
 
-  const parsed = createClientSchema.safeParse(raw);
-  if (!parsed.success) {
-    throw new Error(
-      parsed.error.issues.map((i) => i.message).join(", ")
-    );
-  }
-
-  // Auto-generate slug from name (e.g. "Mario Rossi" → "mario-rossi")
-  const slug = await uniqueSlug(toSlug(parsed.data.name));
-
-  // Insert client — token and id are auto-generated by $defaultFn(() => nanoid())
   const [newClient] = await db
     .insert(clients)
     .values({
-      name: parsed.data.name,
-      brand_name: parsed.data.brand_name,
-      brief: parsed.data.brief,
+      name: input.name,
+      brand_name: input.brand_name,
+      brief: input.brief,
+      email: input.email?.trim() || null,
+      phone: input.phone?.trim() || null,
       slug,
     })
-    .returning({ id: clients.id, token: clients.token, brand_name: clients.brand_name });
+    .returning({ id: clients.id, brand_name: clients.brand_name });
 
-  // Create a default project for the client — all work items are project-scoped
   const [newProject] = await db
     .insert(projects)
     .values({
       client_id: newClient.id,
       name: newClient.brand_name,
+      created_from_lead_id: input.created_from_lead_id ?? null,
     })
     .returning({ id: projects.id });
 
-  // Always create two payment stubs per project — Acconto 50% and Saldo 50%
   await db.insert(payments).values([
-    {
-      project_id: newProject.id,
-      label: "Acconto 50%",
-      amount: "0",
-      status: "da_saldare",
-    },
-    {
-      project_id: newProject.id,
-      label: "Saldo 50%",
-      amount: "0",
-      status: "da_saldare",
-    },
+    { project_id: newProject.id, label: "Acconto 50%", amount: "0", status: "da_saldare" },
+    { project_id: newProject.id, label: "Saldo 50%", amount: "0", status: "da_saldare" },
   ]);
 
+  return { clientId: newClient.id, projectId: newProject.id };
+}
+
+export async function createClient(formData: FormData) {
+  await requireAdmin();
+  const parsed = createClientSchema.safeParse({
+    name: formData.get("name") as string,
+    brand_name: formData.get("brand_name") as string,
+    brief: formData.get("brief") as string,
+    email: (formData.get("email") as string) ?? "",
+    phone: (formData.get("phone") as string) ?? "",
+  });
+  if (!parsed.success) {
+    throw new Error(parsed.error.issues.map((i) => i.message).join(", "));
+  }
+
+  const { clientId } = await createClientCore(parsed.data);
+
   revalidatePath("/admin");
-  redirect(`/admin/clients/${newClient.id}`);
+  redirect(`/admin/clients/${clientId}`);
 }
\ No newline at end of file
diff --git a/src/app/admin/clients/new/page.tsx b/src/app/admin/clients/new/page.tsx
index c4a42c6..1485ebe 100644
--- a/src/app/admin/clients/new/page.tsx
+++ b/src/app/admin/clients/new/page.tsx
@@ -45,6 +45,26 @@ export default function NewClientPage() {
                 required
               />
             </div>
+            <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
+              <div className="space-y-1">
+                <Label htmlFor="email">Email</Label>
+                <Input
+                  id="email"
+                  name="email"
+                  type="email"
+                  placeholder="es. marco@rossistudio.it"
+                />
+              </div>
+              <div className="space-y-1">
+                <Label htmlFor="phone">Telefono</Label>
+                <Input
+                  id="phone"
+                  name="phone"
+                  type="tel"
+                  placeholder="es. +39 333 1234567"
+                />
+              </div>
+            </div>
             <div className="space-y-1">
               <Label htmlFor="brief">Brief del progetto</Label>
               <Textarea
diff --git a/src/app/admin/leads/[id]/page.tsx b/src/app/admin/leads/[id]/page.tsx
index aeb89b4..7f956bc 100644
--- a/src/app/admin/leads/[id]/page.tsx
+++ b/src/app/admin/leads/[id]/page.tsx
@@ -1,18 +1,21 @@
 import { notFound } from "next/navigation";
 import { getActivityLog, getUpcomingReminders, getTranscripts } from "@/lib/lead-service";
-import { getLeadsWithTags, getLeadFieldOptions } from "@/lib/admin-queries";
+import {
+  getLeadByIdWithTags,
+  getLeadFieldOptions,
+  getClientIdFromLead,
+} from "@/lib/admin-queries";
 import { LeadDetail } from "@/components/admin/leads/LeadDetail";
 
 export default async function LeadDetailPage({ params }: { params: Promise<{ id: string }> }) {
   const { id } = await params;
 
-  const [leads, options] = await Promise.all([
-    getLeadsWithTags(),
+  const [lead, options, convertedClientId] = await Promise.all([
+    getLeadByIdWithTags(id),
     getLeadFieldOptions(),
+    getClientIdFromLead(id),
   ]);
 
-  const lead = leads.find((l) => l.id === id);
-
   if (!lead) {
     notFound();
   }
@@ -31,6 +34,7 @@ export default async function LeadDetailPage({ params }: { params: Promise<{ id:
       tags={lead.tags}
       tagOptions={options.tags}
       transcripts={transcripts}
+      convertedClientId={convertedClientId}
     />
   );
 }
diff --git a/src/app/admin/leads/actions.ts b/src/app/admin/leads/actions.ts
index 03239f8..026059b 100644
--- a/src/app/admin/leads/actions.ts
+++ b/src/app/admin/leads/actions.ts
@@ -2,7 +2,7 @@
 
 import { z } from "zod";
 import { db } from "@/db";
-import { leads, quotes, tags, clientTranscripts } from "@/db/schema";
+import { leads, quotes, tags, clientTranscripts, projects } from "@/db/schema";
 import { nanoid } from "nanoid";
 import { eq, and } from "drizzle-orm";
 import {
@@ -12,10 +12,61 @@ import {
   LEAD_STAGES,
 } from "@/lib/lead-validators";
 import { revalidatePath } from "next/cache";
+import { redirect } from "next/navigation";
 import { createActivity, updateLeadStage } from "@/lib/lead-service";
+import { createClientCore } from "@/app/admin/clients/new/actions";
 import { getServerSession } from "next-auth";
 import { authOptions } from "@/lib/auth";
 
+async function requireAdminSession() {
+  const session = await getServerSession(authOptions);
+  if (!session) throw new Error("Non autorizzato");
+}
+
+// Converts a lead into a client (reusing createClientCore): creates the client
+// + default project (linked via created_from_lead_id) + payment stubs, carries
+// over the lead's call transcripts, then archives the lead while keeping its
+// "won" status. Idempotent: a lead already converted just redirects to its
+// client. Redirects to the new client page on success.
+export async function convertLeadToClient(leadId: string): Promise<void> {
+  await requireAdminSession();
+
+  const [lead] = await db.select().from(leads).where(eq(leads.id, leadId)).limit(1);
+  if (!lead) throw new Error("Lead non trovato");
+
+  // Already converted? Redirect to the linked client instead of duplicating.
+  const [existing] = await db
+    .select({ client_id: projects.client_id })
+    .from(projects)
+    .where(eq(projects.created_from_lead_id, leadId))
+    .limit(1);
+  if (existing) {
+    redirect(`/admin/clients/${existing.client_id}`);
+  }
+
+  const { clientId } = await createClientCore({
+    name: lead.name,
+    brand_name: lead.company?.trim() || lead.name,
+    brief: lead.notes?.trim() || `Lead convertito: ${lead.name}`,
+    email: lead.email,
+    phone: lead.phone,
+    created_from_lead_id: lead.id,
+  });
+
+  // Carry over the lead's transcripts to the new client.
+  await db
+    .update(clientTranscripts)
+    .set({ client_id: clientId, lead_id: null })
+    .where(eq(clientTranscripts.lead_id, leadId));
+
+  // Archive the lead but keep its "won" status (traceability without clutter).
+  await db.update(leads).set({ archived: true }).where(eq(leads.id, leadId));
+
+  revalidatePath("/admin/leads");
+  revalidatePath("/admin");
+  redirect(`/admin/clients/${clientId}`);
+}
+
 export async function createLead(data: z.infer<typeof createLeadSchema>) {
   const parsed = createLeadSchema.safeParse(data);
 
diff --git a/src/components/admin/leads/LeadDetail.tsx b/src/components/admin/leads/LeadDetail.tsx
index 4f7a040..bc87dfb 100644
--- a/src/components/admin/leads/LeadDetail.tsx
+++ b/src/components/admin/leads/LeadDetail.tsx
@@ -7,7 +7,13 @@ import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import { OptionMultiSelect } from "@/components/ui/option-multi-select";
-import { addLeadTag, removeLeadTag, renameLeadTag, deleteTranscript } from "@/app/admin/leads/actions";
+import {
+  addLeadTag,
+  removeLeadTag,
+  renameLeadTag,
+  deleteTranscript,
+  convertLeadToClient,
+} from "@/app/admin/leads/actions";
 import { formatDistanceToNow, format } from "date-fns";
 import { it } from "date-fns/locale";
 import Link from "next/link";
@@ -39,6 +45,7 @@ export function LeadDetail({
   tags,
   tagOptions,
   transcripts,
+  convertedClientId,
 }: {
   lead: Lead;
   activities: Activity[];
@@ -46,13 +53,23 @@ export function LeadDetail({
   tags: string[];
   tagOptions: string[];
   transcripts: ClientTranscript[];
+  convertedClientId?: string | null;
 }) {
   const router = useRouter();
   const [, startTransition] = useTransition();
+  const [converting, startConvert] = useTransition();
   const [tagError, setTagError] = useState<string | null>(null);
   const [expandedIds, setExpandedIds] = useState<Set<string>>(new Set());
   const [deletingId, setDeletingId] = useState<string | null>(null);
 
+  function handleConvert() {
+    const ok = window.confirm(
+      `Convertire "${lead.name}" in cliente?\n\nVerrà creato un cliente (con email, telefono e transcript del lead) e il lead verrà archiviato mantenendo lo stato "vinto".`
+    );
+    if (!ok) return;
+    startConvert(() => convertLeadToClient(lead.id));
+  }
+
   function run(fn: () => Promise<unknown>) {
     setTagError(null);
     startTransition(async () => {
@@ -106,6 +123,25 @@ export function LeadDetail({
           >
             Genera preventivo
           </Link>
+          {convertedClientId ? (
+            <Link
+              href={`/admin/clients/${convertedClientId}`}
+              className="inline-flex items-center gap-1.5 px-3 py-2 bg-[#1A463C]/10 text-[#1A463C] rounded-md text-sm font-semibold hover:bg-[#1A463C]/15 transition-colors"
+            >
+              ✓ Convertito → Apri cliente
+            </Link>
+          ) : (
+            lead.status === "won" && (
+              <button
+                type="button"
+                onClick={handleConvert}
+                disabled={converting}
+                className="inline-flex items-center gap-1.5 px-3 py-2 bg-[#1A463C] text-white rounded-md text-sm font-semibold hover:bg-[#1A463C]/90 transition-colors disabled:opacity-50"
+              >
+                {converting ? "Conversione..." : "Converti in cliente"}
+              </button>
+            )
+          )}
           <EditLeadModal lead={lead} />
         </div>
       </div>
diff --git a/src/db/migrations/0011_client_contact_lead_archived.sql b/src/db/migrations/0011_client_contact_lead_archived.sql
new file mode 100644
index 0000000..1606739
--- /dev/null
+++ b/src/db/migrations/0011_client_contact_lead_archived.sql
@@ -0,0 +1,8 @@
+-- Additive: client contact fields (email/phone) + lead archive flag.
+-- Reuse: lead.email/phone carry over to the client on conversion; email also
+-- feeds the v2.3 Email & Accesso (OTP) milestone. leads.archived hides a
+-- converted lead from the pipeline while keeping its "won" status.
+-- No drops/truncates. Safe to re-run.
+ALTER TABLE clients ADD COLUMN IF NOT EXISTS email text;
+ALTER TABLE clients ADD COLUMN IF NOT EXISTS phone text;
+ALTER TABLE leads   ADD COLUMN IF NOT EXISTS archived boolean NOT NULL DEFAULT false;
diff --git a/src/db/schema.ts b/src/db/schema.ts
index 26f8f2b..f38c01b 100644
--- a/src/db/schema.ts
+++ b/src/db/schema.ts
@@ -21,6 +21,10 @@ export const clients = pgTable("clients", {
   name: text("name").notNull(),
   brand_name: text("brand_name").notNull(),
   brief: text("brief").notNull(),
+  // Contact fields (Phase v2.3) — carried over from a converted lead and used
+  // by the Email & Accesso (OTP) milestone. Admin-only, never exposed publicly.
+  email: text("email"),
+  phone: text("phone"),
   // token is SEPARATE from id — rotatable secret for client link access
   token: text("token")
     .notNull()
@@ -454,6 +458,9 @@ export const leads = pgTable("leads", {
   next_action: text("next_action"),
   next_action_date: timestamp("next_action_date", { withTimezone: true }),
   notes: text("notes"),
+  // Archive flag (v2.3) — a converted lead is hidden from the pipeline while
+  // keeping its "won" status, so the board doesn't fill up over time.
+  archived: boolean("archived").notNull().default(false),
   created_at: timestamp("created_at", { withTimezone: true })
     .notNull()
     .defaultNow(),
diff --git a/src/lib/admin-queries.ts b/src/lib/admin-queries.ts
index 8053fed..e9b6703 100644
--- a/src/lib/admin-queries.ts
+++ b/src/lib/admin-queries.ts
@@ -892,6 +892,7 @@ export async function getLeadsWithTags(): Promise<LeadWithTags[]> {
       next_action: leads.next_action,
       next_action_date: leads.next_action_date,
       notes: leads.notes,
+      archived: leads.archived,
       created_at: leads.created_at,
       updated_at: leads.updated_at,
       tag_name: tags.name,
@@ -904,6 +905,7 @@ export async function getLeadsWithTags(): Promise<LeadWithTags[]> {
         eq(tags.entity_type, LEADS_TAG_ENTITY)
       )
     )
+    .where(eq(leads.archived, false)) // converted leads are archived → hidden from pipeline
     .orderBy(desc(leads.updated_at), asc(tags.name));
 
   const leadMap = new Map<string, LeadWithTags>();
@@ -915,6 +917,54 @@ export async function getLeadsWithTags(): Promise<LeadWithTags[]> {
   return Array.from(leadMap.values());
 }
 
+// Single lead by id WITH tags — does NOT filter archived (the detail page must
+// still show a converted/archived lead).
+export async function getLeadByIdWithTags(leadId: string): Promise<LeadWithTags | null> {
+  const rows = await db
+    .select({
+      id: leads.id,
+      name: leads.name,
+      email: leads.email,
+      phone: leads.phone,
+      company: leads.company,
+      status: leads.status,
+      last_contact_date: leads.last_contact_date,
+      next_action: leads.next_action,
+      next_action_date: leads.next_action_date,
+      notes: leads.notes,
+      archived: leads.archived,
+      created_at: leads.created_at,
+      updated_at: leads.updated_at,
+      tag_name: tags.name,
+    })
+    .from(leads)
+    .leftJoin(
+      tags,
+      and(eq(tags.entity_id, leads.id), eq(tags.entity_type, LEADS_TAG_ENTITY))
+    )
+    .where(eq(leads.id, leadId));
+
+  if (rows.length === 0) return null;
+  let result: LeadWithTags | null = null;
+  for (const row of rows) {
+    const { tag_name, ...leadFields } = row;
+    if (!result) result = { ...leadFields, tags: [] };
+    if (tag_name) result.tags.push(tag_name);
+  }
+  return result;
+}
+
+// If this lead was converted, returns the client id of the project created from
+// it (projects.created_from_lead_id), else null.
+export async function getClientIdFromLead(leadId: string): Promise<string | null> {
+  const [row] = await db
+    .select({ client_id: projects.client_id })
+    .from(projects)
+    .where(eq(projects.created_from_lead_id, leadId))
+    .limit(1);
+  return row?.client_id ?? null;
+}
+
 export type LeadFieldOptions = { status: string[]; tags: string[] };
 
 export async function getLeadFieldOptions(): Promise<LeadFieldOptions> {