diff --git a/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts b/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
index 34ef1366b..44b0122c9 100644
--- a/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
+++ b/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
@@ -500,8 +500,8 @@ export class BaileysStartupService extends ChannelStartupService {
     try {
       // Use raw SQL to avoid JSON path issues
       const webMessageInfo = (await this.prismaRepository.$queryRaw`
-        SELECT * FROM "Message" 
-        WHERE "instanceId" = ${this.instanceId} 
+        SELECT * FROM "Message"
+        WHERE "instanceId" = ${this.instanceId}
         AND "key"->>'id' = ${key.id}
       `) as proto.IWebMessageInfo[];
 
@@ -1491,8 +1491,8 @@ export class BaileysStartupService extends ChannelStartupService {
           if (configDatabaseData.HISTORIC || configDatabaseData.NEW_MESSAGE) {
             // Use raw SQL to avoid JSON path issues
             const messages = (await this.prismaRepository.$queryRaw`
-              SELECT * FROM "Message" 
-              WHERE "instanceId" = ${this.instanceId} 
+              SELECT * FROM "Message"
+              WHERE "instanceId" = ${this.instanceId}
               AND "key"->>'id' = ${key.id}
               LIMIT 1
             `) as any[];
@@ -1591,12 +1591,66 @@ export class BaileysStartupService extends ChannelStartupService {
       });
     },
 
-    'group-participants.update': (participantsUpdate: {
+    'group-participants.update': async (participantsUpdate: {
       id: string;
       participants: string[];
       action: ParticipantAction;
     }) => {
-      this.sendDataWebhook(Events.GROUP_PARTICIPANTS_UPDATE, participantsUpdate);
+      // ENHANCEMENT: Adds participantsData field while maintaining backward compatibility
+      // MAINTAINS: participants: string[] (original JID strings)
+      // ADDS: participantsData: { jid: string, phoneNumber: string, name?: string, imgUrl?: string }[]
+      // This enables LID to phoneNumber conversion without breaking existing webhook consumers
+
+      // Helper to normalize participantId as phone number
+      const normalizePhoneNumber = (id: string): string => {
+        // Remove @lid, @s.whatsapp.net suffixes and extract just the number part
+        return id.split('@')[0];
+      };
+
+      try {
+        // Usa o mesmo método que o endpoint /group/participants
+        const groupParticipants = await this.findParticipants({ groupJid: participantsUpdate.id });
+
+        // Validação para garantir que temos dados válidos
+        if (!groupParticipants?.participants || !Array.isArray(groupParticipants.participants)) {
+          throw new Error('Invalid participant data received from findParticipants');
+        }
+
+        // Filtra apenas os participantes que estão no evento
+        const resolvedParticipants = participantsUpdate.participants.map((participantId) => {
+          const participantData = groupParticipants.participants.find((p) => p.id === participantId);
+
+          let phoneNumber: string;
+          if (participantData?.phoneNumber) {
+            phoneNumber = participantData.phoneNumber;
+          } else {
+            phoneNumber = normalizePhoneNumber(participantId);
+          }
+
+          return {
+            jid: participantId,
+            phoneNumber,
+            name: participantData?.name,
+            imgUrl: participantData?.imgUrl,
+          };
+        });
+
+        // Mantém formato original + adiciona dados resolvidos
+        const enhancedParticipantsUpdate = {
+          ...participantsUpdate,
+          participants: participantsUpdate.participants, // Mantém array original de strings
+          // Adiciona dados resolvidos em campo separado
+          participantsData: resolvedParticipants,
+        };
+
+        this.sendDataWebhook(Events.GROUP_PARTICIPANTS_UPDATE, enhancedParticipantsUpdate);
+      } catch (error) {
+        this.logger.error(
+          `Failed to resolve participant data for GROUP_PARTICIPANTS_UPDATE webhook: ${error.message} | Group: ${participantsUpdate.id} | Participants: ${participantsUpdate.participants.length}`,
+        );
+        // Fallback - envia sem conversão
+        this.sendDataWebhook(Events.GROUP_PARTICIPANTS_UPDATE, participantsUpdate);
+      }
 
       this.updateGroupMetadataCache(participantsUpdate.id);
     },
@@ -4461,7 +4515,7 @@ export class BaileysStartupService extends ChannelStartupService {
 
     // Use raw SQL to avoid JSON path issues
     const result = await this.prismaRepository.$executeRaw`
-      UPDATE "Message" 
+      UPDATE "Message"
       SET "status" = ${status[4]}
       WHERE "instanceId" = ${this.instanceId}
       AND "key"->>'remoteJid' = ${remoteJid}
@@ -4486,7 +4540,7 @@ export class BaileysStartupService extends ChannelStartupService {
       this.prismaRepository.chat.findFirst({ where: { remoteJid } }),
       // Use raw SQL to avoid JSON path issues
       this.prismaRepository.$queryRaw`
-        SELECT COUNT(*)::int as count FROM "Message" 
+        SELECT COUNT(*)::int as count FROM "Message"
         WHERE "instanceId" = ${this.instanceId}
         AND "key"->>'remoteJid' = ${remoteJid}
         AND ("key"->>'fromMe')::boolean = false