This module retrieves the size of the backlog at new pages patrol at the start (UTC) of a given day. It uses the data compiled by at .
Note that the data is limited to the last c. 6 months.
Number of articles in the backlog on date (YYYY-MM-DD format):
<nowiki>{{</nowiki>#invoke:NPP backlog|articles|''date''<nowiki>}}</nowiki>
Difference between N and the articles backlog on date:
<nowiki>{{</nowiki>#invoke:NPP backlog|diff|''N''|''date''<nowiki>}}</nowiki>
If there is no data for date, the module will attempt to estimate by working backwards to the first date with data available. By default, this estimation assumes a one-day difference is being calculated. If not, specify a delta value in days:
<nowiki>{{</nowiki>#invoke:NPP backlog|diff|''N''|''date''|''delta''<nowiki>}}</nowiki>