> For the complete documentation index, see [llms.txt](https://docs.aligned.ch/installing-aligned-elements-web-server/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aligned.ch/installing-aligned-elements-web-server/validation-rules-element/illegal-trace-from-rule.md).

# Illegal Trace From Rule

This validation rule looks for unexpected traces. If the Document Object using the validation rule has a trace to a Document Object of the specified type, an inconsistency is displayed.

```
<IllegalTraceFromRule IllegalTraceFromTypeName="User Need" MaxNrOfLegalTraces="1" />
```

### IllegalTraceFromTypeName (Required)&#x20;

The Type Name of the Document Object type from which a trace is not desired.

### MaxNrOfLegalTraces (Optional, Default: 1) &#x20;

An Inconsistency is only generated if there are more than MaxNrOfLegalTraces incoming traces. Example: if MaxNrOfLegalTraces = 2, no inconsistency will be shown if there are 1 or 2 incoming traces to the specified Document Object type, but an inconsistency will be generated if there are more than 2 incoming traces of the specified Document Object type.

### OnlyIllegalForLinkedTraces (Optional, Default: false)

&#x20;If this xml attribute is set to 'true', the validation rule only considers incoming traces from Linked Projects.


---

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