Bug: Error 473 when using /send/button with type: "copy"

[samuelpc7]

Welcome!

• Yes, I have searched for similar issues on GitHub and found none.

What did you do?

I am attempting to send an interactive message with a "copy" button using the /send/button endpoint. I provided the number, title, description, footer, and a button array with type: "copy".

What did you expect?

I expected the message to be successfully delivered to the WhatsApp recipient with the interactive copy button functional.

What did you observe instead of what you expected?

The server returns a 500 status code with the error message {"error":"server returned error 473"} (and sometimes 405). I have verified that my payload structure matches the Swagger documentation, and the same payload works correctly on the legacy /message/sendMessageAnyType endpoint. This indicates an issue with the /send/button endpoint implementation in the current version.

Which version are you using?

Versão: 0.7.2 (via evoapicloud/evolution-go:latest)

What is your environment?

Linux

If applicable, paste the log output

2026-07-13T13:05:25.598Z 2026/07/13 10:05:25 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0DAD08A54554515A03E
2026-07-13T13:05:25.598Z 2026/07/13 10:05:25 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB04A557FDDCDCAA01106
2026-07-13T13:05:25.598Z 2026/07/13 10:05:25 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0B0E477EF5544295DFB
2026-07-13T13:05:25.598Z 2026/07/13 10:05:25 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB07ADBE9F065065DC7AA
2026-07-13T13:05:25.598Z 2026/07/13 10:05:25 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB058CAA9E3A9A23F7E23
2026-07-13T13:05:25.598Z 2026/07/13 10:05:25 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0D707BAB7FF4E1512
2026-07-13T13:05:25.598Z 2026/07/13 10:05:25 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: Receipt, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.receipt, DataSize: 687 bytes
2026-07-13T13:05:25.598Z 2026/07/13 10:05:25 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType Receipt
2026-07-13T13:05:32.345Z 2026/07/13 10:05:32 �[44m[INFO]�[0m [5ad68cb9-16ac-4788-a25a-e27598775eb0] ===== DISPATCHING WEBHOOK ===== Event: UserAbout, Queue: 5ad68cb9-16ac-4788-a25a-e27598775eb0.userabout, DataSize: 267 bytes
2026-07-13T13:05:32.345Z 2026/07/13 10:05:32 �[44m[INFO]�[0m [5ad68cb9-16ac-4788-a25a-e27598775eb0] subscriptions [MESSAGE] eventType UserAbout
2026-07-13T13:05:32.424Z 2026/07/13 10:05:32 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: UserAbout, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.userabout, DataSize: 268 bytes
2026-07-13T13:05:32.424Z 2026/07/13 10:05:32 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType UserAbout
2026-07-13T13:05:39.404Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: PushName, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.pushname, DataSize: 988 bytes
2026-07-13T13:05:39.404Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType PushName
2026-07-13T13:05:39.411Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== MESSAGE RECEIVED ===== ID: ACABB9D802007EDCA36B8686C0077259, From: 31314757554425@lid, Type: text, Size: unknown
2026-07-13T13:05:39.411Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Detected LID/WhatsApp JID swap case - Sender: 31314757554425@lid, SenderAlt: 556299301095@s.whatsapp.net
2026-07-13T13:05:39.411Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] JID swap completed - New Sender: 556299301095@s.whatsapp.net, New SenderAlt: 31314757554425@lid, New Chat: 556299301095@s.whatsapp.net
2026-07-13T13:05:39.411Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== MESSAGE PROCESSING COMPLETED ===== ID: ACABB9D802007EDCA36B8686C0077259, From: 556299301095@s.whatsapp.net, Type: text, Webhook: true
2026-07-13T13:05:39.411Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: Message, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.message, DataSize: 1647 bytes
2026-07-13T13:05:39.411Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType Message
2026-07-13T13:05:39.411Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Event received of type Message
2026-07-13T13:05:39.625Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Receipt received with ID: 3EB0F708AD7B9817D75542 from 17115595722809@lid in 120363422650373486@g.us with type
2026-07-13T13:05:39.625Z 2026/07/13 10:05:39 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0F708AD7B9817D75542
2026-07-13T13:05:41.117Z 2026/07/13 10:05:41 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== MESSAGE RECEIVED ===== ID: AC05CD843C122E404EDE2DA2C29E5AC6, From: 31314757554425@lid, Type: text, Size: unknown
2026-07-13T13:05:41.117Z 2026/07/13 10:05:41 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Detected LID/WhatsApp JID swap case - Sender: 31314757554425@lid, SenderAlt: 556299301095@s.whatsapp.net
2026-07-13T13:05:41.117Z 2026/07/13 10:05:41 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] JID swap completed - New Sender: 556299301095@s.whatsapp.net, New SenderAlt: 31314757554425@lid, New Chat: 556299301095@s.whatsapp.net
2026-07-13T13:05:41.117Z 2026/07/13 10:05:41 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== MESSAGE PROCESSING COMPLETED ===== ID: AC05CD843C122E404EDE2DA2C29E5AC6, From: 556299301095@s.whatsapp.net, Type: text, Webhook: true
2026-07-13T13:05:41.117Z 2026/07/13 10:05:41 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: Message, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.message, DataSize: 1447 bytes
2026-07-13T13:05:41.117Z 2026/07/13 10:05:41 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType Message
2026-07-13T13:05:41.117Z 2026/07/13 10:05:41 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Event received of type Message
2026-07-13T13:05:47.211Z [GIN] 2026/07/13 - 10:05:47 | 200 | 3.012342ms | 172.18.0.1 | GET "/instance/all"
2026-07-13T13:05:47.678Z 2026/07/13 10:05:47 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Proxy configuration updated: http://172.18.0.1:20207
2026-07-13T13:05:47.679Z [GIN] 2026/07/13 - 10:05:47 | 200 | 5.083717ms | 172.18.0.1 | POST "/instance/proxy/0a78b013-23e8-4576-83a5-b7f4eaf68b3e"
2026-07-13T13:05:47.680Z 2026/07/13 10:05:47 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Checking client connection status - Client exists: true
2026-07-13T13:05:47.680Z 2026/07/13 10:05:47 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Client successfully validated - Connected: true
2026-07-13T13:05:47.680Z 2026/07/13 10:05:47 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Starting reconnection process - simulating restart
2026-07-13T13:05:47.680Z 2026/07/13 10:05:47 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Disconnecting existing client
2026-07-13T13:05:47.932Z [GIN] 2026/07/13 - 10:05:47 | 200 | 1.251635ms | 172.18.0.1 | GET "/instance/all"
2026-07-13T13:05:48.004Z [GIN] 2026/07/13 - 10:05:48 | 404 | 60.742µs | 172.18.0.1 | GET "/instance/get/0a78b013-23e8-4576-83a5-b7f4eaf68b3e"
2026-07-13T13:05:48.030Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] WebSocket disconnected
2026-07-13T13:05:48.030Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Event handler removed
2026-07-13T13:05:48.030Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Cleaning up resources
2026-07-13T13:05:48.030Z 10:05:48.029�[33m [Client/Socket WARN] Error sending close to websocket: failed to close WebSocket: failed to read frame header: EOF�[0m
2026-07-13T13:05:48.035Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] UserInfo cache cleared for token: 55af6794-ef7f-416a-ac7b-f9e19f11bb19
2026-07-13T13:05:48.049Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Checking client connection status - Client exists: false
2026-07-13T13:05:48.049Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] No client found, attempting to start new instance
2026-07-13T13:05:48.052Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Starting client
2026-07-13T13:05:48.052Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Instance started, waiting 2 seconds...
2026-07-13T13:05:48.053Z 2026/07/13 10:05:48 �[44m[INFO]�[0m Starting websocket connection to Whatsapp for user '0a78b013-23e8-4576-83a5-b7f4eaf68b3e'
2026-07-13T13:05:48.087Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Jid found. Getting device store for jid: 556284875027:3@s.whatsapp.net
2026-07-13T13:05:48.098Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Setting whatsapp version from web to 2.3000.1043049717
2026-07-13T13:05:48.100Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Proxy enabled (http)
2026-07-13T13:05:48.100Z 2026/07/13 10:05:48 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Already logged in with JID: 556284875027:3@s.whatsapp.net
2026-07-13T13:05:48.917Z 10:05:48.916�[36m [Client INFO] Successfully authenticated�[0m
2026-07-13T13:05:49.325Z 2026/07/13 10:05:49 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] events.Connected to Whatsapp for user 'Samuel Plácido da Costa'
2026-07-13T13:05:49.325Z 2026/07/13 10:05:49 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Marked self as unavailable (alwaysOnline=false)
2026-07-13T13:05:49.341Z 2026/07/13 10:05:49 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: Connected, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.connected, DataSize: 256 bytes
2026-07-13T13:05:49.342Z 2026/07/13 10:05:49 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType Connected
2026-07-13T13:05:49.350Z 2026/07/13 10:05:49 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: OfflineSyncCompleted, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.offlinesynccompleted, DataSize: 185 bytes
2026-07-13T13:05:49.350Z 2026/07/13 10:05:49 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType OfflineSyncCompleted
2026-07-13T13:05:50.049Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Starting fresh instance
2026-07-13T13:05:50.055Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Starting client
2026-07-13T13:05:50.055Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Checking new client - Exists: true, Connected: true
2026-07-13T13:05:50.055Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Client successfully validated - Connected: true
2026-07-13T13:05:50.055Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] SendMessage called for number: +556284875027@s.whatsapp.net, type: InteractiveMessage
2026-07-13T13:05:50.055Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Checking client connection status - Client exists: true
2026-07-13T13:05:50.055Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Client successfully validated - Connected: true
2026-07-13T13:05:50.055Z 2026/07/13 10:05:50 �[44m[INFO]�[0m Starting websocket connection to Whatsapp for user '0a78b013-23e8-4576-83a5-b7f4eaf68b3e'
2026-07-13T13:05:50.366Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Number +556284875027@s.whatsapp.net verified as valid WhatsApp user, using remoteJID: 556284875027@s.whatsapp.net
2026-07-13T13:05:50.366Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Recipient validated: 556284875027@s.whatsapp.net (Server: s.whatsapp.net)
2026-07-13T13:05:50.366Z 2026/07/13 10:05:50 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Sending message to 556284875027@s.whatsapp.net with ID 3EB0362DFEB614070D1953
2026-07-13T13:05:50.837Z [GIN] 2026/07/13 - 10:05:50 | 500 | 2.799484032s | 172.18.0.1 | POST "/send/button"
2026-07-13T13:05:50.837Z 2026/07/13 10:05:50 �[41m[ERR]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Error sending message: server returned error 473
2026-07-13T13:05:50.837Z 2026/07/13 10:05:50 �[41m[ERR]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Error sending button message: server returned error 473
2026-07-13T13:05:53.496Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Receipt received with ID: 3EB058CAA9E3A9A23F7E23 from 64248499699860@lid in 120363422650373486@g.us with type read
2026-07-13T13:05:53.496Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message was read by 64248499699860@lid in 120363422650373486@g.us
2026-07-13T13:05:53.496Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB058CAA9E3A9A23F7E23
2026-07-13T13:05:53.496Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB07ADBE9F065065DC7AA
2026-07-13T13:05:53.496Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0B0E477EF5544295DFB
2026-07-13T13:05:53.496Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: Receipt, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.receipt, DataSize: 539 bytes
2026-07-13T13:05:53.496Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType Receipt
2026-07-13T13:05:53.517Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Receipt received with ID: 3EB0F708AD7B9817D75542 from 64248499699860@lid in 120363422650373486@g.us with type read
2026-07-13T13:05:53.517Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message was read by 64248499699860@lid in 120363422650373486@g.us
2026-07-13T13:05:53.517Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0F708AD7B9817D75542
2026-07-13T13:05:53.517Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB09FFFBABCB5BE7BC3F8
2026-07-13T13:05:53.517Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0F6E3ED23A84E24885B
2026-07-13T13:05:53.517Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0DAD08A54554515A03E
2026-07-13T13:05:53.517Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB04A557FDDCDCAA01106
2026-07-13T13:05:53.517Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Message duplicated ignored: 3EB0D707BAB7FF4E1512
2026-07-13T13:05:53.518Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] ===== DISPATCHING WEBHOOK ===== Event: Receipt, Queue: 0a78b013-23e8-4576-83a5-b7f4eaf68b3e.receipt, DataSize: 612 bytes
2026-07-13T13:05:53.518Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] subscriptions [MESSAGE] eventType Receipt
2026-07-13T13:05:53.874Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Checking client connection status - Client exists: true
2026-07-13T13:05:53.874Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Client successfully validated - Connected: true
2026-07-13T13:05:53.874Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] SendMessage called for number: +556284875027@s.whatsapp.net, type: InteractiveMessage
2026-07-13T13:05:53.874Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Checking client connection status - Client exists: true
2026-07-13T13:05:53.874Z 2026/07/13 10:05:53 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Client successfully validated - Connected: true
2026-07-13T13:05:54.146Z 2026/07/13 10:05:54 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Number +556284875027@s.whatsapp.net verified as valid WhatsApp user, using remoteJID: 556284875027@s.whatsapp.net
2026-07-13T13:05:54.146Z 2026/07/13 10:05:54 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Recipient validated: 556284875027@s.whatsapp.net (Server: s.whatsapp.net)
2026-07-13T13:05:54.146Z 2026/07/13 10:05:54 �[44m[INFO]�[0m [0a78b013-23e8-4576-83a5-b7f4eaf68b3e] Sending message to 556284875027@s.whatsapp.net with ID 3EB0E28604A4DA2687B510

Additional Notes

"I have verified that this issue is specific to the /send/button endpoint in this version (v0.7.2). I am using the same payload structure on the legacy /message/sendMessageAnyType endpoint, which works perfectly, confirming that the WhatsApp number is not blocked and the payload logic is correct. This suggests a potential regression or parsing issue in the whatsmeow implementation for the new interactive buttons endpoint."

[samuelpc7]

Did some digging in the source (pkg/sendMessage/service/send_service.go, SendButton function)
and think I found the likely root cause.

For the reply-only case, the message is intentionally wrapped like this:

msg = &waE2E.Message{
    DocumentWithCaptionMessage: &waE2E.FutureProofMessage{
        Message: &waE2E.Message{
            ButtonsMessage: buttonsMsg,
        },
    },
    ...
}

The code comment credits this specific wrapper to "Baileys PR #36" — i.e. it's a
workaround known to be needed specifically for ButtonsMessage (quick_reply) to render
correctly on WhatsApp.

The problem: the exact same DocumentWithCaptionMessage wrapper is also applied to the
pix and mixed-CTA (copy/url/call) branches, which use InteractiveMessage/NativeFlowMessage
instead of ButtonsMessage:

msg = &waE2E.Message{
    DocumentWithCaptionMessage: &waE2E.FutureProofMessage{
        Message: &waE2E.Message{
            InteractiveMessage: &waE2E.InteractiveMessage{ ... },
        },
    },
    ...
}

That workaround was documented/verified for ButtonsMessage, not for InteractiveMessage.
Wrapping InteractiveMessage inside DocumentWithCaptionMessage looks like it may be sending
a message shape/signature WhatsApp's servers don't expect for that message type, which
would explain the "server returned error 473" ack — and also explains why the same
payload logic on the legacy /message/sendMessageAnyType endpoint works fine (that path
presumably doesn't apply this wrapper to InteractiveMessage).

Worth checking whether InteractiveMessage should instead be sent as a top-level field on
waE2E.Message (not nested under DocumentWithCaptionMessage) for the copy/url/call/pix cases.