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Macro Syntax Error#

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File: tutorials/modules/connect-iot-equipment-integration/kafka_tutorial.md

Line 215 in Markdown file: unexpected char '$' at 16139 

1. The payload arrives as a JSON string in `Value`. Add a converter (or an object/JSON task) to parse it into fields — `resource`, `material`, `quantity`. In Data Flow you reference upstream data with tokens, for example `{{ $onUnitCompleted.Value }}`.