diff --git a/src/apps/chatwoot/client/ContactConversationService.ts b/src/apps/chatwoot/client/ContactConversationService.ts
index accfe960..c3978294 100644
--- a/src/apps/chatwoot/client/ContactConversationService.ts
+++ b/src/apps/chatwoot/client/ContactConversationService.ts
@@ -24,6 +24,21 @@ import { AttributeKey } from '@waha/apps/chatwoot/const';
 export interface ContactInfo {
   ChatId(): string;
 
+  /**
+   * Linked id - @lid, null when unknown
+   */
+  LidId(): Promise<string | null>;
+
+  /**
+   * Phone number jid - @c.us, null when unknown
+   */
+  JidId(): Promise<string | null>;
+
+  /**
+   * Resolved E.164 phone number, null when not applicable
+   */
+  PhoneNumberE164(): Promise<string | null>;
+
   AvatarUrl(): Promise<string | null>;
 
   Attributes(): Promise<any>;
diff --git a/src/apps/chatwoot/client/ContactService.ts b/src/apps/chatwoot/client/ContactService.ts
index cf90d546..7d0a43f1 100644
--- a/src/apps/chatwoot/client/ContactService.ts
+++ b/src/apps/chatwoot/client/ContactService.ts
@@ -40,6 +40,18 @@ export function sanitizeName(name: string) {
   return clean.slice(0, 255).trim();
 }
 
+function SearchClauseEqualTo(key: string, values: string[]) {
+  // equal_to with multiple values acts as IN
+  return {
+    attribute_key: key,
+    filter_operator: 'equal_to',
+    values: values,
+    attribute_model: 'standard',
+    custom_attribute_type: '',
+    query_operator: 'OR',
+  };
+}
+
 export class ContactService {
   constructor(
     private config: ChatWootAPIConfig,
@@ -52,8 +64,11 @@ export class ContactService {
     contactInfo: ContactInfo,
   ): Promise<[ContactResponse, boolean]> {
     const chatId = contactInfo.ChatId();
-    let contact = await this.searchByAnyID(chatId);
+    const lid = await contactInfo.LidId();
+    const jid = await contactInfo.JidId();
+    let contact = await this.search(chatId, lid, jid);
     if (contact) {
+      await this.upsertPhoneNumber(contact, contactInfo);
       return [contact, false];
     }
 
@@ -62,73 +77,94 @@ export class ContactService {
     return [contact, true];
   }
 
-  async searchByAnyID(chatId: string): Promise<ContactResponse | null> {
-    const payload: any[] = [
-      {
-        attribute_key: AttributeKey.WA_CHAT_ID,
-        filter_operator: 'equal_to',
-        values: [chatId],
-        attribute_model: 'standard',
-        custom_attribute_type: '',
-        query_operator: 'OR',
-      },
-      {
-        attribute_key: AttributeKey.WA_JID,
-        filter_operator: 'equal_to',
-        values: [chatId],
-        attribute_model: 'standard',
-        custom_attribute_type: '',
-        query_operator: 'OR',
-      },
-      {
-        attribute_key: AttributeKey.WA_LID,
-        filter_operator: 'equal_to',
-        values: [chatId],
-        attribute_model: 'standard',
-        custom_attribute_type: '',
-        query_operator: 'OR',
-      },
-      {
-        attribute_key: 'identifier',
-        filter_operator: 'equal_to',
-        values: [chatId],
-        attribute_model: 'standard',
-        custom_attribute_type: '',
-      },
-    ];
-
-    if (isJidCusFormat(chatId)) {
-      // Search by phone
-      const phoneNumberE164 = E164Parser.fromJid(chatId);
-      const phone_number = phoneNumberE164.replace('+', '');
-      payload[payload.length - 1].query_operator = 'OR';
-      payload.push({
-        attribute_key: 'phone_number',
-        filter_operator: 'equal_to',
-        values: [phone_number],
-      });
+  async search(
+    chatId: string,
+    lid: string | null,
+    jid: string | null,
+  ): Promise<ContactResponse | null> {
+    // The chat id attribute holds the latest used address, so match any known form there
+    const chatIds = lodash.uniq(lodash.compact([chatId, jid, lid]));
+    if (chatIds.length == 0) {
+      return null;
     }
 
+    const payload: any[] = [
+      SearchClauseEqualTo(AttributeKey.WA_CHAT_ID, chatIds),
+      SearchClauseEqualTo('identifier', chatIds),
+    ];
+    if (jid) {
+      payload.push(SearchClauseEqualTo(AttributeKey.WA_JID, [jid]));
+    }
+    if (lid) {
+      payload.push(SearchClauseEqualTo(AttributeKey.WA_LID, [lid]));
+    }
+    if (jid && isJidCusFormat(jid)) {
+      // Search by phone - both with and without the leading '+'
+      const phoneNumberE164 = E164Parser.fromJid(jid);
+      let phones = [phoneNumberE164, phoneNumberE164.replace('+', '')];
+      payload.push(SearchClauseEqualTo('phone_number', phones));
+    }
+    // The terminal clause must have no query_operator
+    delete payload[payload.length - 1].query_operator;
+
     const response: any = await this.accountAPI.contacts.filter({
       accountId: this.config.accountId,
       payload: payload as any,
     });
 
     const contacts = response.payload;
-    if (contacts.length == 0) {
+    const candidates: ContactResponse[] = [];
+    for (const contact of contacts) {
+      const inboxes = lodash.filter(contact.contact_inboxes, {
+        inbox: { id: this.config.inboxId },
+      });
+      if (inboxes.length == 0) {
+        continue;
+      }
+      candidates.push({
+        data: contact,
+        sourceId: inboxes[0].source_id,
+      });
+    }
+    if (candidates.length == 0) {
       return null;
     }
-    const contact = contacts[0];
-    const inboxes = lodash.filter(contact.contact_inboxes, {
-      inbox: { id: this.config.inboxId },
-    });
-    if (inboxes.length == 0) {
-      return null;
+    // Prefer a contact with a phone number over a phone-less duplicate
+    const withPhone = candidates.find((candidate) =>
+      Boolean(candidate.data.phone_number),
+    );
+    return withPhone ?? candidates[0];
+  }
+
+  private async upsertPhoneNumber(
+    contact: ContactResponse,
+    contactInfo: ContactInfo,
+  ): Promise<void> {
+    if (contact.data.phone_number) {
+      return;
+    }
+    const phoneNumberE164 = await contactInfo.PhoneNumberE164();
+    if (!phoneNumberE164) {
+      return;
+    }
+    try {
+      await this.accountAPI.contacts.update({
+        id: contact.data.id,
+        accountId: this.config.accountId,
+        data: { phone_number: phoneNumberE164 },
+      });
+      contact.data.phone_number = phoneNumberE164;
+      this.logger.info(
+        `Set phone_number for contact.id: ${
+          contact.data.id
+        }, chat.id: ${contactInfo.ChatId()}`,
+      );
+    } catch (err) {
+      // Chatwoot returns 422 when another contact already owns the phone number
+      this.logger.warn(
+        `Error updating phone_number for contact.id: ${contact.data.id} - ${err}`,
+      );
     }
-    return {
-      data: contact,
-      sourceId: inboxes[0].source_id,
-    };
   }
 
   public async upsertCustomAttributes(
diff --git a/src/apps/chatwoot/contacts/InboxContactInfo.ts b/src/apps/chatwoot/contacts/InboxContactInfo.ts
index 4f6a41f7..0d214ee8 100644
--- a/src/apps/chatwoot/contacts/InboxContactInfo.ts
+++ b/src/apps/chatwoot/contacts/InboxContactInfo.ts
@@ -14,6 +14,18 @@ export class InboxContactInfo implements ContactInfo {
     return INBOX_CONTACT_CHAT_ID;
   }
 
+  async LidId(): Promise<string | null> {
+    return null;
+  }
+
+  async JidId(): Promise<string | null> {
+    return null;
+  }
+
+  async PhoneNumberE164(): Promise<string | null> {
+    return null;
+  }
+
   async AvatarUrl() {
     return this.l.key(TKey.APP_INBOX_CONTACT_AVATAR_URL).render();
   }
diff --git a/src/apps/chatwoot/contacts/WhatsAppContactInfo.ts b/src/apps/chatwoot/contacts/WhatsAppContactInfo.ts
index cb40cdeb..be7a46d6 100644
--- a/src/apps/chatwoot/contacts/WhatsAppContactInfo.ts
+++ b/src/apps/chatwoot/contacts/WhatsAppContactInfo.ts
@@ -32,6 +32,18 @@ abstract class ChatContactInfo implements ContactInfo {
     return this.chatId;
   }
 
+  async LidId(): Promise<string | null> {
+    return null;
+  }
+
+  async JidId(): Promise<string | null> {
+    return null;
+  }
+
+  async PhoneNumberE164(): Promise<string | null> {
+    return null;
+  }
+
   abstract AvatarUrl(): Promise<string | null>;
 
   abstract Attributes(): Promise<any>;
@@ -53,6 +65,19 @@ class JidContactInfo extends ChatContactInfo {
     return await this.session.findLIDByPN(this.chatId);
   }
 
+  async LidId(): Promise<string | null> {
+    const lid = await this.fetchLid().catch(() => null);
+    return lid || null;
+  }
+
+  async JidId(): Promise<string | null> {
+    return this.chatId;
+  }
+
+  async PhoneNumberE164(): Promise<string | null> {
+    return E164Parser.fromJid(this.chatId);
+  }
+
   @CacheAsync()
   async Attributes() {
     const attributes = {
@@ -112,6 +137,23 @@ class LidContactInfo extends ChatContactInfo {
     return new JidContactInfo(this.session, pn, this.locale);
   }
 
+  async LidId(): Promise<string | null> {
+    return this.chatId;
+  }
+
+  async JidId(): Promise<string | null> {
+    const jid = await this.jid();
+    return jid?.ChatId() ?? null;
+  }
+
+  async PhoneNumberE164(): Promise<string | null> {
+    const jid = await this.jid();
+    if (!jid) {
+      return null;
+    }
+    return await jid.PhoneNumberE164();
+  }
+
   async AvatarUrl(): Promise<string | null> {
     const jid = await this.jid();
     if (jid) {