Hello, I'm having difficulty understanding how to connect a phone number to send messages to my clients. The instructions mention:
Download the certificate or copy it to your clipboard Follow these instructions to confirm your number (obsolete) Could someone guide me on how to proceed with these steps? Specifically, how do I confirm the phone number if the mentioned instructions are outdated?
Thank you!

Hi there, we need to add a new number to our account, but the button is greyed out. We added and removed a number a few times yesterday, it all worked then. We have not hit the number limit, only one other number added in another whatsapp account. How can we enable this again? In total we have 3 whatsapp accounts and we cannot add a new number to any of them. Thanks a lot, Sebastian

Error msg for WhatsApp API: This message was not delivered to maintain health ecosystem engagement.

I am getting this error when using an existing template.
{ "error": { "message": "(#135000) Generic user error", "type": "OAuthException", "code": 135000, "error_data": { "messaging_product": "whatsapp", "details": "Generic user error" }, "fbtrace_id": "AJHkrT_tUTQmbF_4CSH8x0s" } }
Relevant Information:
The template used is approved in the Business Manager. The recipient's number has been tested and is in E.164 format (e.g.: +5511999999999). The access token used has the correct permissions (whatsapp_business_messaging and whatsapp_business_management). The phone number is active and linked to the WhatsApp Business account. Sending individual messages continues to work The problem occurred without any changes, sending templates simply stopped working.
Attempts to resolve:
I checked the template parameters and they are correct. I confirmed that the access token is valid. I tested with other templates and other phone numbers, but the error persists.
==== Query curl -i -X POST \ "https://graph.facebook.com/v21.0/279250811937609/messages?messaging_product=whatsapp&to=5521987485346&type=template&template=%7B%0A%20%20%22name%22%3A%20%22resgate_vale_bonus%22%2C%0A%20%20%22language%22%3A%20%7B%0A%20%20%20%20%22code%22%3A%20%22pt_BR%22%0A%20%20%7D%0A%7D&access_token=" ==== Access Token Info { "perms": [ "whatsapp_business_management", "whatsapp_business_messaging", "public_profile" ], "user_id": 273615452469614, "app_id": 725050119784650 } ==== Parameters - Query Parameters
{} - POST Parameters
{ "messaging_product": "whatsapp", "to": "5521", "type": "template", "template": "{\n \"name\": \"resgate_vale_bonus\",\n \"language\": {\n \"code\": \"pt_BR\"\n }\n}" } ==== Response { "error": { "message": "(#135000) Generic user error", "type": "OAuthException", "code": 135000, "error_data": { "messaging_product": "whatsapp", "details": "Generic user error" }, "fbtrace_id": "APrdnVrE-sD4iFOPhD7pQBB" } } ==== Debug Information from Graph API Explorer - https://developers.facebook.com/tools/explorer/725050119784650/?method=POST&path=279250811937609%2Fmessages&version=v21.0&messaging_product=whatsapp&to=5521987485346&type=template&template=%7B%0A%20%20%22name%22%3A%20%22resgate_vale_bonus%22%2C%0A%20%20%22language%22%3A%20%7B%0A%20%20%20%20%22code%22%3A%20%22pt_BR%22%0A%20%20%7D%0A%7D

Hi! Developer Support states that support tickets/queries are to be logged here.
Can you please review my account status and the recent spam report we received. There is currently no ability to appeal the spam report and the WABA is not banned or restricted according to the WhatsApp manager or Business Support Home.
I found this bug report which stated that this error can be related to a spam report. https://developers.facebook.com/support/bugs/355592997506030/
After receiving one spam report the pass weekend every WhatsApp Template Message API call returns:
{ "error": { "message": "(#135000) Generic user error", "type": "OAuthException", "code": 135000, "error_data": { "messaging_product": "whatsapp", "details": "Generic user error" }, "fbtrace_id": "AG4PSxP3A2ezG-K-zIhJyRK" } }
What can I do in this situation.