Start with the goal and the first step that produces an unexpected result. List the nodes in execution order, then show a small synthetic input, the output you expected, and the output you actually received. Include the exact error if one appeared.
Run the same sample again before posting so you know whether the failure is consistent. State whether retries duplicate records or messages and which permissions or external services are involved. Remove credentials, customer data, and internal URLs from logs and screenshots.
A report that identifies the first incorrect node is much easier to debug than one that only shows the final bad output.
Akousa