NiFi: Cannot map Input port to processor ExecuteProcess

[#1]

I have a process group and from the input port, I just could not link to the ExecuteProcess processor. Can you please advise on any specific reason for that?

[#2 · Accepted solution]

ExecuteProcess doesn't take input. It is a source of data (e.g. from that process).

What you're looking for is ExecuteStreamCommand, which allows for passing in a flowfile and evaluate attributes dynamically: https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.processors.standard.ExecuteStreamC...