this morning, a similar thing happened
Input Payload is invalid, validation result - '["Connector or activity name: adf_staging_test_db, connector or activity type: AzureSqlDatabase, error: Call ADF partner RP EvaluatePolicyAsync failed: An error occurred while sending the request.."]'
activity run id
7eab8f7a-3b7f-4596-8082-755a00bcdbce