If you've integrated Telebirr in Laravel or PHP before, you've probably seen this error: 60200099 Verify the sign field failed At first it looks simple. Then you spend hours debugging: RSA padding parameter ordering webhook verification H5 signing rules PEM formatting sandbox vs production diffe...
Source: [Dev.to](https://dev.to/ogbek/open-source-telebirr-php-laravel-sdk-for-production-ready-ethiopian-payment-integration-4ldg)