Property talk:P4003

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Facebook page ID
official Facebook page of this entity (only for use with URLs containing "/pages/")

Applicable "stated in" value	Facebook (Q355)
Data type	External identifier
Corresponding template	Template:Facebook page (Q14400757)
Template parameter	id in Template:Facebook page (Q14400757)
Domain	people organisations, venues (note: this should be moved to the property statements)
Allowed values	[\p{L}\d]+(?:[-_.][\p{L}\d]+)*/[1-9][0-9]+ (keywords or decimal integers, possibly linked by a dash, underscore or dot, followed by a slash and a decimal integer identifier)
Example	Statistical Society of Australia (Q19879481) → Statistical-Society-of-Australia-Inc/186936994713723 Garden of Remembrance, Norra Begravningsplatsen (Q28006122) → Norra-begravningsplatsen/102511286468672
External links	Use in sister projects: [ar] • [de] • [en] • [es] • [fr] • [he] • [it] • [ja] • [ko] • [nl] • [pl] • [pt] • [ru] • [sv] • [vi] • [zh] • [commons] • [species] • [wd] • [en.wikt] • [fr.wikt].
Formatter URL	https://www.facebook.com/pages/$1
Tracking: usage	Category:Pages using Wikidata property P4003 (Q35064182)
Related to country	United States of America (Q30) (See 762 others)
See also	Facebook username (P2013), Facebook numeric ID (P11705)
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 Items with no other external identifier 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 Database reports/Constraint violations/P4003 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 8,274 Main statement 8,090 97.8% of uses Qualifier 34 0.4% of uses Reference 150 1.8% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

Distinct values: this property likely contains a value that is different from all other items. (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/P4003#Unique value, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (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/P4003#Single value, SPARQL

Format “[\p{L}\d]+(?:[-_.][\p{L}\d]+)*/[1-9][0-9]+”: value must be formatted using this pattern (PCRE syntax). (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/P4003#Format, SPARQL

Item “Facebook username (P2013)”: Items with this property should also have “Facebook username (P2013)”. (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/P4003#Item P2013, search, 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/P4003#Entity types

Conflicts with “website account on (P553): Facebook (Q355)”: this property must not be used with the listed properties and values. (Help)

List of violations of this constraint: Database reports/Constraint violations/P4003#Conflicts with P553, hourly updated report, search, SPARQL

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (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/P4003#Scope, SPARQL

Pattern ^([0-9A-zÀ-ú_\.-]+/\d+)/$ will be automatically replaced to \1. Testing: TODO list

This property is being used by: en:Template:Facebook page sh:Šablon:Facebook Page n:ru:Шаблон:Оформление категории sl:Predloga:Infopolje Župnija, sl:Predloga:Infopolje Planinska koča vi:Bản mẫu:Facebook Page or:ଛାଞ୍ଚ:Facebook page zh:Template:Facebook page eu:Txantiloi:Aldizkari infotaula b:ru:Шаблон:Оформление категории n:bg:Шаблон:Оформяне на категория incubator:Template:Wn/tg/Ороиши гурӯҳ ka:თარგი:Facebook გვერდი ckb:داڕێژە:پەڕەی فەیسبووک th:แม่แบบ:Facebook page, th:แม่แบบ:เพจเฟซบุ๊ก ko:틀:페이스북 페이지 as:সাঁচ:Facebook page el:Πρότυπο:Σελίδα στο facebook tum:Template:Facebook page n:eo:Ŝablono:Temkategorio 2 Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Discussion

Import

I shall shortly begin importing values from en.Wikipedia. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 15:20, 1 June 2017 (UTC)

Formatter URL

Maybe currently shoud be not a /pages/$1, but /pg/$1 ? --Kaganer (talk) 01:26, 6 June 2018 (UTC)

•  Done --Kaganer (talk) 13:27, 8 June 2018 (UTC)

And also regexp constraint may be more simple. --Kaganer (talk) 01:29, 6 June 2018 (UTC)

@99of9: Sorry, may I know why you changed it again to /pages/$1? --minhhuy ^(talk) 04:11, 11 November 2018 (UTC)

Facebook page ID (P4003) was designed for use IDs starting with facebook.com/pages/ (see the property proposal discussion) and those links do not work with facebook.com/pg/:

• https://www.facebook.com/pages/Statistical-Society-of-Australia-Inc/186936994713723 (working link)
• https://www.facebook.com/pg/Statistical-Society-of-Australia-Inc/186936994713723 (non-working link)

Links that work with /pg/ should also work without it and therefore could be added using Facebook username (P2013) instead:

• https://www.facebook.com/pg/Statistical-Society-of-Australia-Inc-186936994713723 (working link with /pg/)
• https://www.facebook.com/Statistical-Society-of-Australia-Inc-186936994713723 (working link without /pg/)

-- Zyxw (talk) 22:24, 26 January 2019 (UTC)

Not official

What exactly is the purpose of this property? I don’t know if something has changed within Facebook, but these so called ”pages” under https://www.facebook.com/pages/ are not official Facebook pages of people, organizations, venues, etc. On the contrary, they’re ”unofficial pages created by Facebook due to people expressing interest in the place or organization”, or something like that. Quite often I see this property being used when Facebook username (P2013) should be used. This is also evident by the constraint violations of this property. –Kooma (talk) 12:53, 17 July 2018 (UTC)

Edits of BlueFire10

@BlueFire10: This property was clearly designed for use IDs starting with facebook.com/pages (see the property proposal discussion), please stop doing that. Kirilloparma (talk) 14:29, 14 April 2020 (UTC)

Why does this property exist, if the property Property:P2013 already exists? What should be the difference? Isn't it to distinguish between profiles of less known people and the official pages of prominent people etc., which you can also follow and like? BlueFire10 (talk) 14:39, 14 April 2020 (UTC)

Also in the example mentioned (Q19879481) there is no /pages on the Facebook page (after redirection). Is it possible that Facebook has changed something there? BlueFire10 (talk) 14:55, 14 April 2020 (UTC)

Numeric ID is only real identifier

The expected/required format for this property's value consists of two parts: a text string and a numeric page ID (e.g. Statistical-Society-of-Australia-Inc/186936994713723). This value is then formatted as https://facebook.com/pages/$1.

However, it turns out only the page ID (the second part) is relevant, and the first part is not checked by Facebook and can actually be anything. As an example, all three following links go to the same page:

• https://www.facebook.com/pages/Statistical-Society-of-Australia-Inc/186936994713723
• https://www.facebook.com/pages/Wikidata/186936994713723
• https://www.facebook.com/pages/qwertyuiop/186936994713723

This property therefore doesn't add much else than the page ID, and would therefore preferably either be replaced by or morph into a strictly numeric page ID property, somewhat like X user numeric ID (P6552). We should also see how this property should relate to Facebook username (P2013). The proposed numeric ID property also sounds interesting in this regard. Victor LP (talk) 18:41, 6 September 2020 (UTC)

The numeric ID is no longer displayed by Facebook for many pages, that are now only known by their keyword identifier. Any extensions after the slash are now ignored. Otherwise, this is only a decimal numeric id (also without any extension (there can be only query parameters for subpages, and tools attached to that page which will use their own keywords for the Facebook API such as "/photo/").

Note that this property applies only to pages (what can follow "https://www.facebook.com/page/"), but could as well apply to groups (what can follow "https://www.facebook.com/group/"), or topics (what can follow "https://www.facebook.com/page/".

Pages may also exist with their primary keyword (the "pages/" prefix), but not all these keywords are accepted. You can eventually know the numeric ID by looking at photos or some contents attached to the main profile page: the query string will contain a parameter "?fbid=someinteger". In some cases, the keyword for the page or group profile may not exist or could have been suppressed (e.g. if the name was claimed by someone else, and the account was still not suppressed, Facebook then asking to the account owner to give a new name, even if the ID is preserved). This means that account keywords (made of letters/digits separated by dots/hyphens/underscores) may not be permanent (and a user may want to have it changed, while keeping the content and the existing numeric ID).

Many groups however don't have a keyword assigned: you locate them by the Facebook search engine, by their display label (which is not an identifier as it may have may homonymies and are much less restricted in terms of orthography): the actual keyword created by facebook for them would be a simplified form of the account name, possibly followed by a dot and some random integer.

Finally members of a group may be only referenced by their user id within that group (it is possible to join a group without linking the membership to the personal page: the numeric user id in that group is appended after "/group/(groupid)/user/"), and it is only possible to interact with that user using this id (and members may change their named identity when becoming members, or may change their photo, so that their own personal account is not publicly affected by what they do in the group: only the group owner may know the real identity if the group was a "closed group" where permission is required to join).

So how to use the Facebook URLs? Facebook does not warranty it, unless we use their documented API. I'm not even sure that we can really host such info in Wikidata, unless these are for official pages of organizations and grands, whose ID (really a keyword) is reserved (and their identity reviewed and asserted by facebook and not concerned by individual privacy issues). Verdy p (talk) 14:36, 10 November 2020 (UTC)