diff --git a/lib/actions/link-actions.js b/lib/actions/link-actions.js
--- a/lib/actions/link-actions.js
+++ b/lib/actions/link-actions.js
@@ -43,6 +43,7 @@
       return {
         status: response.status,
         community: response.community,
+        thread: response.thread,
       };
     }
     return {
diff --git a/lib/hooks/invite-links.js b/lib/hooks/invite-links.js
--- a/lib/hooks/invite-links.js
+++ b/lib/hooks/invite-links.js
@@ -134,21 +134,27 @@
 export type LinkStatus = 'invalid' | 'valid' | 'timed_out' | 'already_joined';
 
 const inviteLinkTexts: {
-  +[LinkStatus]: { +header: string, +message: string },
+  +[LinkStatus]: {
+    +header: string,
+    +message: (isThreadLink: boolean) => string,
+  },
 } = {
   invalid: {
     header: 'Invite invalid',
-    message:
+    message: () =>
       'This invite link may be expired. Please try again with another invite' +
       ' link.',
   },
   ['timed_out']: {
     header: 'Timeout',
-    message: 'The request has timed out.',
+    message: () => 'The request has timed out.',
   },
   ['already_joined']: {
     header: 'Already a member',
-    message: 'You are already a member of this community.',
+    message: isThreadLink =>
+      `You are already a member of this ${
+        isThreadLink ? 'thread' : 'community'
+      }.`,
   },
 };
 
diff --git a/native/navigation/invite-link-modal.react.js b/native/navigation/invite-link-modal.react.js
--- a/native/navigation/invite-link-modal.react.js
+++ b/native/navigation/invite-link-modal.react.js
@@ -86,7 +86,7 @@
           {inviteLinkTexts[linkStatus].header}
         </Text>
         <Text style={styles.invalidInviteExplanation}>
-          {inviteLinkTexts[linkStatus].message}
+          {inviteLinkTexts[linkStatus].message(!!invitationDetails.thread)}
         </Text>
       </>
     );
@@ -101,18 +101,16 @@
 
   const threadInfos = useSelector(threadInfoSelector);
   const closeModal = React.useCallback(() => {
-    const communityID = invitationDetails.community?.id;
-    if (
-      linkStatus === 'already_joined' &&
-      communityID &&
-      threadInfos[communityID]
-    ) {
-      navigateToThread(threadInfos[communityID]);
+    const threadID =
+      invitationDetails.thread?.id ?? invitationDetails.community?.id;
+    if (linkStatus === 'already_joined' && threadID && threadInfos[threadID]) {
+      navigateToThread(threadInfos[threadID]);
     } else {
       props.navigation.goBack();
     }
   }, [
     invitationDetails.community?.id,
+    invitationDetails.thread?.id,
     linkStatus,
     navigateToThread,
     props.navigation,
diff --git a/web/invite-links/accept-invite-modal.react.js b/web/invite-links/accept-invite-modal.react.js
--- a/web/invite-links/accept-invite-modal.react.js
+++ b/web/invite-links/accept-invite-modal.react.js
@@ -92,7 +92,9 @@
           <div className={css.heading}>
             {inviteLinkTexts[linkStatus].header}
           </div>
-          <div className={css.text}>{inviteLinkTexts[linkStatus].message}</div>
+          <div className={css.text}>
+            {inviteLinkTexts[linkStatus].message(!!verificationResponse.thread)}
+          </div>
         </div>
         <hr />
         <Button
diff --git a/web/invite-links/invite-link-handler.react.js b/web/invite-links/invite-link-handler.react.js
--- a/web/invite-links/invite-link-handler.react.js
+++ b/web/invite-links/invite-link-handler.react.js
@@ -86,17 +86,17 @@
         };
       }
 
-      const communityID = result.community?.id;
+      const threadID = result.thread?.id ?? result.community?.id;
       if (
-        communityID &&
+        threadID &&
         result.status === 'already_joined' &&
-        threadInfos[communityID]
+        threadInfos[threadID]
       ) {
         dispatch({
           type: updateNavInfoActionType,
           payload: {
             chatMode: 'view',
-            activeChatThreadID: communityID,
+            activeChatThreadID: threadID,
             tab: 'chat',
           },
         });