Very strange error. SPROC works fine when I DO NOT specify input parameters. However, when I specifiy two input parameters (see image below), I'm getting weird error below stating that I'm missing sp_send_dbmail parameters. I know the sproc works perfectly. Not sure what could be wrong with tMSSqlSP parameters. Error Message At least one of the following parameters must be specified. "@body, @query, @file_attachments, @subject" Your help is much appreciated!