diff --git a/src/Socket/groups.ts b/src/Socket/groups.ts
index e9e24aa..e9a7cde 100644
--- a/src/Socket/groups.ts
+++ b/src/Socket/groups.ts
@@ -191,7 +191,7 @@ export const makeGroupsSocket = (config: SocketConfig) => {
 				]
 			)
 			const node = getBinaryNodeChild(result, action)
-			const participantsAffected = getBinaryNodeChildren(node!, 'participant')
+			const participantsAffected = getBinaryNodeChildren(node, 'participant')
 			return participantsAffected.map(p => {
 				return { status: p.attrs.error || '200', jid: p.attrs.jid, content: p }
 			})
@@ -232,6 +232,18 @@ export const makeGroupsSocket = (config: SocketConfig) => {
 			const result = getBinaryNodeChild(results, 'group')
 			return result?.attrs.jid
 		},
+
+		/**
+		 * revoke a v4 invite for someone
+		 * @param groupJid group jid
+		 * @param invitedJid jid of person you invited
+		 * @returns true if successful
+		 */
+		groupRevokeInviteV4: async(groupJid: string, invitedJid: string) => {
+			const result = await groupQuery(groupJid, 'set', [{ tag: 'revoke', attrs: {}, content: [{ tag: 'participant', attrs: { jid: invitedJid } }] }])
+			return !!result
+		},
+
 		/**
 		 * accept a GroupInviteMessage
 		 * @param key the key of the invite message, or optionally only provide the jid of the person who sent the invite
diff --git a/src/Socket/messages-send.ts b/src/Socket/messages-send.ts
index 5d73086..490a59a 100644
--- a/src/Socket/messages-send.ts
+++ b/src/Socket/messages-send.ts
@@ -608,6 +608,8 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 			return 'product'
 		} else if(message.interactiveResponseMessage) {
 			return 'native_flow_response'
+		} else if(message.groupInviteMessage) {
+			return 'url'
 		}
 	}
 
@@ -746,6 +748,8 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 									: undefined
 							},
 						),
+						//TODO: CACHE
+						getProfilePicUrl: sock.profilePictureUrl,
 						upload: waUploadToServer,
 						mediaCache: config.mediaCache,
 						options: config.options,
diff --git a/src/Types/Message.ts b/src/Types/Message.ts
index 8c9a8f5..d0488cb 100644
--- a/src/Types/Message.ts
+++ b/src/Types/Message.ts
@@ -125,6 +125,14 @@ export type ButtonReplyInfo = {
     index: number
 }
 
+export type GroupInviteInfo = {
+    inviteCode: string
+    inviteExpiration: number
+    text: string
+    jid: string
+    subject: string
+}
+
 export type WASendableProduct = Omit<proto.Message.ProductMessage.IProductSnapshot, 'productImage'> & {
     productImage: WAMediaUpload
 }
@@ -153,6 +161,9 @@ export type AnyRegularMessageContent = (
         buttonReply: ButtonReplyInfo
         type: 'template' | 'plain'
     }
+    | {
+        groupInvite: GroupInviteInfo
+    }
     | {
         listReply: Omit<proto.Message.IListResponseMessage, 'contextInfo'>
     }
@@ -244,6 +255,7 @@ export type MediaGenerationOptions = {
 }
 export type MessageContentGenerationOptions = MediaGenerationOptions & {
 	getUrlInfo?: (text: string) => Promise<WAUrlInfo | undefined>
+    getProfilePicUrl?: (jid: string, type: 'image' | 'preview') => Promise<string | undefined>
 }
 export type MessageGenerationOptions = MessageContentGenerationOptions & MessageGenerationOptionsFromContent
 
diff --git a/src/Utils/messages.ts b/src/Utils/messages.ts
index 82adbef..9293990 100644
--- a/src/Utils/messages.ts
+++ b/src/Utils/messages.ts
@@ -394,6 +394,25 @@ export const generateWAMessageContent = async(
 			(message.disappearingMessagesInChat ? WA_DEFAULT_EPHEMERAL : 0) :
 			message.disappearingMessagesInChat
 		m = prepareDisappearingMessageSettingContent(exp)
+	} else if('groupInvite' in message) {
+		m.groupInviteMessage = {}
+		m.groupInviteMessage.inviteCode = message.groupInvite.inviteCode
+		m.groupInviteMessage.inviteExpiration = message.groupInvite.inviteExpiration
+		m.groupInviteMessage.caption = message.groupInvite.text
+
+		m.groupInviteMessage.groupJid = message.groupInvite.jid
+		m.groupInviteMessage.groupName = message.groupInvite.subject
+		//TODO: use built-in interface and get disappearing mode info etc.
+		//TODO: cache / use store!?
+		if(options.getProfilePicUrl) {
+			const pfpUrl = await options.getProfilePicUrl(message.groupInvite.jid, 'preview')
+			if(pfpUrl) {
+				const resp = await axios.get(pfpUrl, { responseType: 'arraybuffer' })
+				if(resp.status === 200) {
+					m.groupInviteMessage.jpegThumbnail = resp.data
+				}
+			}
+		}
 	} else if('pin' in message) {
 		m.pinInChatMessage = {}
 		m.messageContextInfo = {}