If the Backstage indicates errors in the tags and description, it means you didn't respect the restrictions (detailed in the small question mark next to the "Description" and "Tags" fields):
- Restrictions applied to descriptions:
- 5,000 characters maximum.
- Forbidden characters: < and >.
- Restrictions applied to tags:
- 2 tags minimum and 30 tags maximum per release.
- 30 characters maximum per tag.
- Forbidden characters: « , » and ".