BIP2935
Severity
20 : ErrorMessage
(<insert_0>, <insert_1>) : An expression which evaluates to a scalar variable or a field is required here.Explanation
The expression supplying the parameter must evaluate to a value of a suitable type. The given expression cannot possibly do so.Response
Correct the syntax of your ESQL expression in node '<insert_0>', around line and column '<insert_1>', then redeploy the message flow.