It really depends on whether there REALLY is no author. Is there any attribution at all? Perhaps the name of a committee or a government organization that created or sponsored the document?
If it is truly the case that there is no author, then you will move the title into the author position.
Example:
Cats are fluffy. (2018). The American Journal of Fluffy Animals and Other Critters with Fur, 17(4), 19-32. https://doi.org/10.1002/fsn3.877
For more information on APA 7, please visit the Netter Library APA 7 Citation Help Guide.
