APA Interview Format
In APA format, interviews should be listed as a "personal communication" for in-text citations (just like the e-mail item type), and should NOT be included in the bibliography. Any chance of having that adjusted?
edit spelling error
For now, use letter, email, or instant message instead for personal communications.
Note that it’s not possible in official CSL to omit a cited item from the bibliography. That will need to be deleted manually at the end of writing.
1. In a custom style, wouldn't it be technically possible to omit all information for a certain item type in the bibliography entry? That is, don't display author; don't display title; don't display year, etc., etc., so that the entry ends up blank? I'd use one of the less useful types like "instant message". But without testing that, I don't know if it might cause some weird problems for sorting or leave blanks lines, etc. At least they'd be easy to remove. Or you could simply flag them all with some obvious prefix or suffix to know to remove them.
2. Why do you want to treat informal personal communication as an item, anyway? I just write that in manually (if attached to a published article, as a suffix e.g.
", personal communication"
). I only include actual references in my Zotero library (e.g., something someone else could look up in theory, even if informal like a manuscript/draft, but not a conversation I had). Up to you though.