I installed the WhatsApp Business API, and for the first few months, everything worked great. However, later on, there were issues with sending messages, even though all the templates were approved. I was promised that everything would be fixed, and within an hour, they really resolved the issue. There haven't been any serious errors since then. I have been collaborating with this company for a long time, and they offer a good price/quality ratio. Overall, the managers and technical support respond quickly to inquiries, and the service is stable. I recommend it.