30119: Certificate and private key pair is invalid

This error occurs when the private key and certificate you upload are individually valid, but they do not match as a pair for your Link Shortening domain. Twilio validates uploaded certificates and keys when you upload a certificate for Link Shortening.

• The certificate and private key are for different domains, or they do not belong to the same certificate and key pair.
• If you configured Link Shortening on a subdomain, the certificate and private key were not generated for that subdomain.

• Regenerate the certificate and private key as a matching pair for the domain or subdomain you configured for Link Shortening, then upload the new files.
• Upload the certificate in PEM format. Make sure the certificate begins with -----BEGIN CERTIFICATE----- and ends with -----END CERTIFICATE-----, and that the private key begins with -----BEGIN PRIVATE KEY----- and ends with -----END PRIVATE KEY----- or is in PKCS #8 format.
• Include the full certificate chain when you upload the certificate.
• If you use the REST API, set TlsCert to the concatenated certificate and private key. After you upload the file, check the certificate validation status because validation can take up to five minutes.

• Link Shortening onboarding guide
• Link Shortening
• Security