PenstockGuide / Every rule
A mapping line reads a value an earlier line was meant to set
The check code/mapping-order, in the group Diagrams and code.
Why it matters
The engine evaluates the source of every mapping line before it writes any target, so a later line that reads what an earlier one sets gets null - camunda#11789.
How to fix it
Move the value into the earlier line, or compute both from the same source.
Where you see it
The Problems tab lists it under Code. In a terminal, penstock code reports it with the file and line. This check is part of Penstock Pro, and Team in a pipeline.
Rule details
| Id | code/mapping-order |
| Group | Diagrams and code |
| Level | Advice: it works, and reads or runs better without it |
Read more: Code links. All rules: Every rule.