How do I format an APA citation with missing journal information?
It's increasingly common for online journals to not have volume numbers, issue numbers, and/or page ranges. In these cases, there is usually an article number and/or DOI. According to APA 7th edition, you can simply omit the missing element(s) from the reference.
For example, here is a citation for an article that only includes a volume number, article number, and DOI.
Wang, T., Zhai, J., Liu, X. L., Yao, L. Q., & Tan, J. Y. B. (2021). Massage therapy for fatigue management in breast cancer survivors: a systematic review and descriptive analysis of randomized controlled trials. Evidence-Based Complementary and Alternative Medicine, 2021, Article e9967574. https://doi.org/10.1155/2021/9967574
You can find more examples of journal articles with missing information on APA Style's official website.
Note: Some citation generators exclude elements that are actually present. Be sure to check the article on the journal's website. You can usually find all the reference information you need at the top of the page.