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.

Check constraints for entity

Result for Jon Scheyer (Q1983483)

: 1, : 1, : 2, : 1074, : 77, : 4

StatusPropertyNachrichtConstraint
Basketball-Reference.com NBA G League player ID/^(?:([a-z])\\/\1[a-z]+[0-9]+[a-z])$/u is not a valid regular expression.format constraint
Wikimedia import URLThe value for Wikimedia import URL (https://www.wikidata.org/wiki/Q1983483#P4744) should match the regex ((?!wikidata\.org/(wiki/|w/index\.php\?title=)Q).)*.format constraint
X usernameThis X username statement is missing a qualifier start time.required qualifier constraint
official websiteThis official website statement is missing a qualifier language of work or name.required qualifier constraint