H have this issue when sending template message the template is approved and parameters are correct but I don't know why doesn't work, only the hello_world template works fine
{"error":{ "message":"(#135000) Generic user error", "type":"OAuthException", "code":135000," error_data":{ "messaging_product":"whatsapp", "details":"Generic user error" }, "fbtrace_id":"AChsM9L4vSRF3_71gmezn5O" }}

Button and flow messages sent via WhatsApp Business API are sent to most customers, some of whom receive a 131026 non-delivery notice. In controls; -Numbers are valid WhatsApp numbers -Current WhatsApp installed -Current WhatsApp service agreement appears to be approved. We could not understand why the sent messages could not be sent to some customers.

If my certificate has expired and I don't want to change my display name, how can I get a new certificate to continue account verification?

I added a business phone number on the WhatsApp administrator page, and it says that the status of the phone number is 'waiting' and requires phone number registration. I'm trying to follow the guide, so should I follow the document guide 'Migration from On-premises API to Cloud API'? Is there any way to proceed with phone number registration and certificate registration on the WhatsApp administrator page without that process? I'm going to send an authentication message to my customers in different countries via WhatsApp. At this time, I'd like to conduct a shipping test to check the actual billing system, so I'd appreciate it if you could give me a guide on how to register a business phone number. Please reply as soon as possible.

I'm not able to deliver a message with image in the header. My image it is on the cloud and it is open doesn't have any restrictions I used the same template as it is listed in the documentation, all of the fields are correct and the number that I used to test it is available, the message return 200, but the client never get the response, I tried with the support teams but they doesn't give me any clue to find the error, I think this a problem with the platform
curl -X POST \ 'https://graph.facebook.com/v21.0/FROM_PHONE_NUMBER_ID/messages' \ -H 'Authorization: Bearer ACCESS_TOKEN' \ -H 'Content-Type: application/json' \ -d '{ "messaging_product": "whatsapp", "recipient_type": "individual", "to": "PHONE_NUMBER", "type": "template", "template": { "name": "TEMPLATE_NAME", "language": { "code": "LANGUAGE_AND_LOCALE_CODE" }, "components": [ { "type": "header", "parameters": [ { "type": "image", "image": { "link": "https://URL" } } ] }, { "type": "body", "parameters": [ { "type": "text", "text": "TEXT-STRING" }, { "type": "currency", "currency": { "fallback_value": "VALUE", "code": "USD", "amount_1000": NUMBER } }, { "type": "date_time", "date_time": { "fallback_value": "MONTH DAY, YEAR" } } ] } ] } }'