Check Whatsapp Number

Hello,
Thanks

I need a step to check if a Whatsapp number is valid or not.
I tried with API by Pabbly but I receive always the same error despite IDs are verified:

Unsupported post request. Object with ID 'XXXX' does not exist, cannot be loaded due to missing permissions, or does not support this operation. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api

Is there any way to make this happen without using a 3rd party app?

Thank you

Hello @sportinvest.org,

Could you please provide us with the Workflow URL where you are facing this issue? This will help us investigate the problem more effectively and assist you accordingly.

Please be aware that to assist you effectively, we may need to access your Pabbly Connect account. If you're comfortable with this, please grant us permission by stating in your next reply:

"You have my permission to log into my Pabbly Connect account and edit the workflow, if required. Here is the registered email address associated with it."

Looking forward to assisting you further.

Hello this is the workflow, even if I just tried, it is not a Pabbly error or bug.
I just ask a way to do the task.

You have my permission to log into my Pabbly Connect account and edit the workflow, if required. Here is the registered email address associated with it.

Hello @sportinvest.org,

Thank you for sharing the workflow URL.

Currently, there’s no Meta API to verify phone numbers. On WhatsApp, you can only check by attempting to start a chat — if the number isn’t registered, it prompts an invite.

Regarding your error, it indicates that the Portfolio ID or Account ID used doesn’t exist, isn’t accessible, or lacks permissions:

“Unsupported post request. Object with ID '709655225574784' does not exist, cannot be loaded due to missing permissions, or does not support this operation.”

Is there any alternative?

Unfortunately, we currently don’t have any alternative for the use case you’re describing.