BIP2534
Severity
20 : ErrorMessage
(<insert_0>, <insert_1>) : The dynamic field reference does not resolve to a modifiable quantity.Explanation
The dynamic field reference supplied must resolve to a modifyable quantity (a declared variable or a field in a modifyable message) as the usage implies that its value is to be changed.Response
Correct the syntax of your ESQL expression in node '<insert_0>', around line and column '<insert_1>', then redeploy the message flow.