Constraint report
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This special page performs constraint checks on any entity you want. The entities are fetched from the live system, so every constraint violation you fix there will be instantly removed from this list.
The constraints are parsed from statements on properties each time those statements are edited, usually within a few minutes.
Result for Barcelona (Q807912)
: 1, : 1, : 571, : 48
| Status | Property | Nachricht | Constraint |
|---|---|---|---|
| Billboard artist ID | This property's value should not be present on any other item, but is also present on Barcelona. | distinct-values constraint | |
| official website | This official website statement is missing a qualifier language of work or name. | required qualifier constraint |