# Audible via API to prevent use of empty fields when composing fields

**URL:** https://community.mp3tag.de/t/audible-via-api-to-prevent-use-of-empty-fields-when-composing-fields/71175
**Category:** Web Sources Discussion
**Created:** [March 20, 2026, 1:34pm UTC](https://community.mp3tag.de/t/audible-via-api-to-prevent-use-of-empty-fields-when-composing-fields/71175 "2026-03-20T13:34:48Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [May 5, 2026, 8:09am UTC](https://community.mp3tag.de/t/audible-via-api-to-prevent-use-of-empty-fields-when-composing-fields/71175/4 "2026-05-05T08:09:34Z")

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I've just released [audible-api v0.6.4](https://community.mp3tag.de/t/ws-audible-via-api/64347), which fixes the two issues you've reported:

- Prevent use of empty `SERIES-PART` in `ALBUMSORT` and `CONTENTGROUP`.
- Prevent `ARTIST` to start with comma if only `NARRATOR` is provided.

* * *

Thank you for sharing the regular expressions. I've not incorporated any of those mainly based on your words of caution from above.

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_[View the full topic](https://community.mp3tag.de/t/audible-via-api-to-prevent-use-of-empty-fields-when-composing-fields/71175)._