Why are my WhatsApp messages failing due to a billing currency issue?

Hi Pabbly Support,

I’m having an issue with Pabbly Chatflow. My messages are showing as “Failed” when I try to send them through WhatsApp.

One of the screenshots attached mentions something about my billing currency. I can’t seem to find where I can change or update the billing currency in my Meta Business account, and I’m not sure why this is causing an issue.

Could you please help me identify what is causing the messages to fail and guide me on how to fix this?

I’ve attached screenshots of the error for reference.

Thank you.