diff --git a/deltachat-ffi/deltachat.h b/deltachat-ffi/deltachat.h
index 7e0d811b6..f07c8ebce 100644
--- a/deltachat-ffi/deltachat.h
+++ b/deltachat-ffi/deltachat.h
@@ -6561,9 +6561,7 @@ void dc_event_unref(dc_event_t* event);
  *
  * @param data1 (int) The ID of the contact that wants to join.
  * @param data2 (int) The progress as:
- *     300=vg-/vc-request received, typically shown as "bob@addr joins".
- *     600=vg-/vc-request-with-auth received and verified, typically shown as "bob@addr verified".
- *     800=contact added to chat, shown as "bob@addr securely joined GROUP". Only for the verified-group-protocol.
+ *     0=Error.
  *     1000=Protocol finished for this contact.
  */
 #define DC_EVENT_SECUREJOIN_INVITER_PROGRESS      2060
diff --git a/deltachat-jsonrpc/src/api/types/events.rs b/deltachat-jsonrpc/src/api/types/events.rs
index 2b4633af4..d162aefd9 100644
--- a/deltachat-jsonrpc/src/api/types/events.rs
+++ b/deltachat-jsonrpc/src/api/types/events.rs
@@ -310,9 +310,7 @@ pub enum EventType {
         chat_type: u32,
 
         /// Progress as:
-        /// 300=vg-/vc-request received, typically shown as "bob@addr joins".
-        /// 600=vg-/vc-request-with-auth received and verified, typically shown as "bob@addr verified".
-        /// 800=contact added to chat, shown as "bob@addr securely joined GROUP". Only for the verified-group-protocol.
+        /// 0=Error.
         /// 1000=Protocol finished for this contact.
         progress: usize,
     },
diff --git a/src/securejoin.rs b/src/securejoin.rs
index 1872252cc..bb4fb5eb4 100644
--- a/src/securejoin.rs
+++ b/src/securejoin.rs
@@ -40,8 +40,8 @@ fn inviter_progress(
 ) -> Result<()> {
     logged_debug_assert!(
         context,
-        progress <= 1000,
-        "inviter_progress: contact {contact_id}, progress={progress}, but value in range 0..1000 expected with: 0=error, 1..999=progress, 1000=success."
+        progress == 0 || progress == 1000,
+        "inviter_progress: contact {contact_id}, progress={progress}, but value is not 0 (error) or 1000 (success)."
     );
     let chat_type = match step.get(..3) {
         Some("vc-") => Chattype::Single,
@@ -321,8 +321,6 @@ pub(crate) async fn handle_securejoin_handshake(
                 return Ok(HandshakeMessage::Ignore);
             }
 
-            inviter_progress(context, contact_id, step, 300)?;
-
             let from_addr = ContactAddress::new(&mime_message.from.addr)?;
             let autocrypt_fingerprint = mime_message.autocrypt_fingerprint.as_deref().unwrap_or("");
             let (autocrypt_contact_id, _) = Contact::add_or_lookup_ex(
@@ -416,7 +414,6 @@ pub(crate) async fn handle_securejoin_handshake(
                 ChatId::create_for_contact(context, contact_id).await?;
             }
             context.emit_event(EventType::ContactsChanged(Some(contact_id)));
-            inviter_progress(context, contact_id, step, 600)?;
             if let Some(group_chat_id) = group_chat_id {
                 // Join group.
                 secure_connection_established(
@@ -428,7 +425,6 @@ pub(crate) async fn handle_securejoin_handshake(
                 .await?;
                 chat::add_contact_to_chat_ex(context, Nosync, group_chat_id, contact_id, true)
                     .await?;
-                inviter_progress(context, contact_id, step, 800)?;
                 inviter_progress(context, contact_id, step, 1000)?;
                 // IMAP-delete the message to avoid handling it by another device and adding the
                 // member twice. Another device will know the member's key from Autocrypt-Gossip.
@@ -565,9 +561,6 @@ pub(crate) async fn observe_securejoin_on_other_device(
 
     ChatId::set_protection_for_contact(context, contact_id, mime_message.timestamp_sent).await?;
 
-    if step == "vg-member-added" {
-        inviter_progress(context, contact_id, step, 800)?;
-    }
     if step == "vg-member-added" || step == "vc-contact-confirm" {
         inviter_progress(context, contact_id, step, 1000)?;
     }