diff --git a/src/core/engines/gows/grpc/gows.ts b/src/core/engines/gows/grpc/gows.ts
index 9f1c6b39..3ed408d7 100644
--- a/src/core/engines/gows/grpc/gows.ts
+++ b/src/core/engines/gows/grpc/gows.ts
@@ -11362,6 +11362,15 @@ export namespace messages {
                 responseSerialize: (message: Empty) => Buffer.from(message.serialize()),
                 responseDeserialize: (bytes: Buffer) => Empty.deserialize(new Uint8Array(bytes))
             },
+            SetGroupMemberAddMode: {
+                path: "/messages.MessageService/SetGroupMemberAddMode",
+                requestStream: false,
+                responseStream: false,
+                requestSerialize: (message: JidBoolRequest) => Buffer.from(message.serialize()),
+                requestDeserialize: (bytes: Buffer) => JidBoolRequest.deserialize(new Uint8Array(bytes)),
+                responseSerialize: (message: Empty) => Buffer.from(message.serialize()),
+                responseDeserialize: (bytes: Buffer) => Empty.deserialize(new Uint8Array(bytes))
+            },
             UpdateGroupParticipants: {
                 path: "/messages.MessageService/UpdateGroupParticipants",
                 requestStream: false,
@@ -11734,6 +11743,7 @@ export namespace messages {
         abstract SetGroupPicture(call: grpc_1.ServerUnaryCall<SetPictureRequest, Empty>, callback: grpc_1.sendUnaryData<Empty>): void;
         abstract SetGroupLocked(call: grpc_1.ServerUnaryCall<JidBoolRequest, Empty>, callback: grpc_1.sendUnaryData<Empty>): void;
         abstract SetGroupAnnounce(call: grpc_1.ServerUnaryCall<JidBoolRequest, Empty>, callback: grpc_1.sendUnaryData<Empty>): void;
+        abstract SetGroupMemberAddMode(call: grpc_1.ServerUnaryCall<JidBoolRequest, Empty>, callback: grpc_1.sendUnaryData<Empty>): void;
         abstract UpdateGroupParticipants(call: grpc_1.ServerUnaryCall<UpdateParticipantsRequest, JsonList>, callback: grpc_1.sendUnaryData<JsonList>): void;
         abstract GetProfilePicture(call: grpc_1.ServerUnaryCall<ProfilePictureRequest, ProfilePictureResponse>, callback: grpc_1.sendUnaryData<ProfilePictureResponse>): void;
         abstract SendPresence(call: grpc_1.ServerUnaryCall<PresenceRequest, Empty>, callback: grpc_1.sendUnaryData<Empty>): void;
@@ -11861,6 +11871,9 @@ export namespace messages {
         SetGroupAnnounce: GrpcUnaryServiceInterface<JidBoolRequest, Empty> = (message: JidBoolRequest, metadata: grpc_1.Metadata | grpc_1.CallOptions | grpc_1.requestCallback<Empty>, options?: grpc_1.CallOptions | grpc_1.requestCallback<Empty>, callback?: grpc_1.requestCallback<Empty>): grpc_1.ClientUnaryCall => {
             return super.SetGroupAnnounce(message, metadata, options, callback);
         };
+        SetGroupMemberAddMode: GrpcUnaryServiceInterface<JidBoolRequest, Empty> = (message: JidBoolRequest, metadata: grpc_1.Metadata | grpc_1.CallOptions | grpc_1.requestCallback<Empty>, options?: grpc_1.CallOptions | grpc_1.requestCallback<Empty>, callback?: grpc_1.requestCallback<Empty>): grpc_1.ClientUnaryCall => {
+            return super.SetGroupMemberAddMode(message, metadata, options, callback);
+        };
         UpdateGroupParticipants: GrpcUnaryServiceInterface<UpdateParticipantsRequest, JsonList> = (message: UpdateParticipantsRequest, metadata: grpc_1.Metadata | grpc_1.CallOptions | grpc_1.requestCallback<JsonList>, options?: grpc_1.CallOptions | grpc_1.requestCallback<JsonList>, callback?: grpc_1.requestCallback<JsonList>): grpc_1.ClientUnaryCall => {
             return super.UpdateGroupParticipants(message, metadata, options, callback);
         };
diff --git a/src/core/engines/gows/grpc/gows_grpc_pb.js b/src/core/engines/gows/grpc/gows_grpc_pb.js
index e220f4e0..c6eb08e6 100644
--- a/src/core/engines/gows/grpc/gows_grpc_pb.js
+++ b/src/core/engines/gows/grpc/gows_grpc_pb.js
@@ -1050,6 +1050,18 @@ setGroupAnnounce: {
     responseDeserialize: deserialize_messages_Empty,
   },
   // send messages only by admins
+setGroupMemberAddMode: {
+    path: '/messages.MessageService/SetGroupMemberAddMode',
+    requestStream: false,
+    responseStream: false,
+    requestType: gows_pb.JidBoolRequest,
+    responseType: gows_pb.Empty,
+    requestSerialize: serialize_messages_JidBoolRequest,
+    requestDeserialize: deserialize_messages_JidBoolRequest,
+    responseSerialize: serialize_messages_Empty,
+    responseDeserialize: deserialize_messages_Empty,
+  },
+  // who can add members - true - all members, false - admins only
 updateGroupParticipants: {
     path: '/messages.MessageService/UpdateGroupParticipants',
     requestStream: false,
diff --git a/src/core/engines/gows/session.gows.core.ts b/src/core/engines/gows/session.gows.core.ts
index 83e88f20..033381f2 100644
--- a/src/core/engines/gows/session.gows.core.ts
+++ b/src/core/engines/gows/session.gows.core.ts
@@ -119,6 +119,7 @@ import {
   GroupSortField,
   Participant,
   ParticipantsRequest,
+  SettingsMemberAddMode,
   SettingsSecurityChangeInfo,
 } from '@waha/structures/groups.dto';
 import { ReplyToMessage } from '@waha/structures/message.dto';
@@ -1650,6 +1651,24 @@ export class WhatsappSessionGoWSCore extends WhatsappSession {
     return;
   }
 
+  public async getMemberAddMode(id): Promise<SettingsMemberAddMode> {
+    const group = await this.getGroup(id);
+    return {
+      membersCanAddNewMember: group.MemberAddMode === 'all_member_add',
+    };
+  }
+
+  @Activity()
+  public async setMemberAddMode(id, value) {
+    const req = new messages.JidBoolRequest({
+      session: this.session,
+      jid: id,
+      value: value,
+    });
+    await promisify(this.client.SetGroupMemberAddMode)(req);
+    return;
+  }
+
   public deleteGroup(id) {
     throw new NotImplementedByEngineError();
   }
diff --git a/src/core/engines/webjs/groups.webjs.ts b/src/core/engines/webjs/groups.webjs.ts
index 06298561..b1a203bd 100644
--- a/src/core/engines/webjs/groups.webjs.ts
+++ b/src/core/engines/webjs/groups.webjs.ts
@@ -34,7 +34,7 @@ function ToGroupInfo(
     subject: group.name,
     description: group.description,
     invite: invite,
-    membersCanAddNewMember: groupMetadata.restrict,
+    membersCanAddNewMember: groupMetadata.memberAddMode === 'all_member_add',
     membersCanSendMessages: groupMetadata.announce,
     newMembersApprovalRequired: groupMetadata.membershipApprovalMode,
     participants: participants,
diff --git a/src/core/engines/webjs/session.webjs.core.ts b/src/core/engines/webjs/session.webjs.core.ts
index 58b73e0b..990f9d88 100644
--- a/src/core/engines/webjs/session.webjs.core.ts
+++ b/src/core/engines/webjs/session.webjs.core.ts
@@ -108,6 +108,7 @@ import {
   GroupParticipant,
   GroupSortField,
   ParticipantsRequest,
+  SettingsMemberAddMode,
   SettingsSecurityChangeInfo,
 } from '@waha/structures/groups.dto';
 import { Label, LabelDTO, LabelID } from '@waha/structures/labels.dto';
@@ -1535,6 +1536,22 @@ export class WhatsappSessionWebJSCore extends WhatsappSession {
     return groupChat.setMessagesAdminsOnly(value);
   }
 
+  public async getMemberAddMode(id): Promise<SettingsMemberAddMode> {
+    const groupChat = (await this.whatsapp.getChatById(id)) as GroupChat;
+    return {
+      membersCanAddNewMember:
+        // @ts-ignore
+        groupChat.groupMetadata.memberAddMode === 'all_member_add',
+    };
+  }
+
+  @Activity()
+  public async setMemberAddMode(id, value) {
+    const groupChat = (await this.whatsapp.getChatById(id)) as GroupChat;
+    // The library setter is inverted - it takes "adminsOnly"
+    return groupChat.setAddMembersAdminsOnly(!value);
+  }
+
   public async getGroups(pagination: PaginationParams) {
     const chats = await this.whatsapp.getChats();
     const groups = lodash.filter(chats, (chat) => chat.isGroup);
diff --git a/src/core/engines/wpp/session.wpp.core.ts b/src/core/engines/wpp/session.wpp.core.ts
index 53368683..c966fec9 100644
--- a/src/core/engines/wpp/session.wpp.core.ts
+++ b/src/core/engines/wpp/session.wpp.core.ts
@@ -165,6 +165,7 @@ import {
   GroupParticipantRole,
   GroupSortField,
   ParticipantsRequest,
+  SettingsMemberAddMode,
   SettingsSecurityChangeInfo,
 } from '@waha/structures/groups.dto';
 import { ContactQuery, ContactRequest } from '@waha/structures/contacts.dto';
@@ -1412,6 +1413,26 @@ export class WhatsappSessionWPPCore extends WhatsappSession {
     );
   }
 
+  public async getMemberAddMode(id): Promise<SettingsMemberAddMode> {
+    const group = await this.wpp!.getChatById(this.ensureSuffix(id));
+    // Undocumented property - 'all_member_add' or 'admin_add'
+    const memberAddMode = group?.groupMetadata?.memberAddMode;
+    return {
+      membersCanAddNewMember: memberAddMode === 'all_member_add',
+    };
+  }
+
+  @Activity()
+  public setMemberAddMode(id: string, value: boolean): Promise<boolean> {
+    // Not in the GroupProperty enum, but wa-js passes the property through
+    // to WhatsApp's setGroupProperty - 1 - all members, 0 - admins only
+    return this.wpp!.setGroupProperty(
+      this.ensureSuffix(id),
+      'member_add_mode' as GroupProperty,
+      value,
+    );
+  }
+
   @Activity()
   public deleteGroup(id: string): Promise<boolean> {
     return this.wpp!.deleteChat(this.ensureSuffix(id));
@@ -1874,7 +1895,8 @@ export class WhatsappSessionWPPCore extends WhatsappSession {
           subject: group?.name || '',
           description: group?.groupMetadata?.desc || '',
           invite: null,
-          membersCanAddNewMember: !group?.groupMetadata?.restrict,
+          membersCanAddNewMember:
+            group?.groupMetadata?.memberAddMode === 'all_member_add',
           membersCanSendMessages: !group?.groupMetadata?.announce,
           newMembersApprovalRequired:
             !!group?.groupMetadata?.membershipApprovalMode,