As this is a support issue, to address this you need to contact the Sinch Support team, by either:
Logging a support ticket on our Customer Ticketing Portal
Email us at support@sinch.com.
Thanks and kind regards,
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Dear Support, I'm actually unable to send sms through
http://sms-pp.sapmobileservices.com/ I get this message :
"Username/Password Authentication Failed."Did you do any changes (url /
authentification method) recently ? Regards Julien
