date of issue; date of publication
Used for the date a document, certificate, ticket, or publication was officially issued or published.
Please check the date of issue on your passport.
The publication date of this book is April 1, 2020.
発売日 is the date something goes on sale, while 発行日 is the date it is officially issued or published.
Compound of 発行 (issue, publication) and 日 (day).