Property talk:P2770

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source of income
source of income of an organization or person

Represents	income (Q1527264)
Data type	Item
Domain	organization (Q43229), human (Q5) or profession (Q28640)
Allowed values	instance of (P31)/subclass of (P279)* → business model (Q815823) (note: this should be moved to the property statements)
Example	Wikimedia Foundation (Q180) → donation (Q1124860) Facebook (Q355) → advertising (Q37038) Spotify (Q689141) → subscription business model (Q322948) recording artist (Q55960555) → recording artist royalties (Q42417160)
Tracking: usage	Category:Pages using Wikidata property P2770 (Q61244468)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Map of people by place values: place of birth educated at work location residence place of death place of burial January 1st dates People with date of birth on January 1 People with date of death on January 1 People with both dates on January 1 Database reports/Humans with missing claims/P2770 Database reports/Constraint violations/P2770 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 538 Main statement 529 98.3% of uses Qualifier 9 1.7% of uses
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Type “organization (Q43229), human (Q5), profession (Q28640)”: item must contain property “instance of (P31)” with classes “organization (Q43229), human (Q5), profession (Q28640)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2770#Type Q43229, Q5, Q28640, SPARQL

Scope is as main value (Q54828448), as qualifier (Q54828449): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2770#Scope, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2770#Entity types