How do I resolve "The underlying connection was closed: An unexpected error occurred on a send." in Sage PRO?
Overview
How do I resolve "The underlying connection was closed: An unexpected error occurred on a send." in Sage PRO?
Environment
Sage PRO
Resolution
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Restart your Sage server
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Ensure you are using the current SHA 256 certificate
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If you are still on SHA 1 certificate you need to use a special service URL that supports SHA1.
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NOTE: We are planning to discontinue the use of SHA1 certificate on May 10, 2017 (Avalara AvaTax SHA1 Certificate Change May 2017). In the meantime, we've created a special service URL that still supports SHA1.