LINE Sticker Review FAQ: Reasons for Rejection
A comprehensive guide to passing the LINE Creators Market review. Learn about technical standards, copyrights, and global cultural restrictions.
Table of Contents
Technical Specification Failures
The most common reason for rejection is improper image settings, often resulting in the message 'The image is not transparently processed.' LINE requires even-numbered pixel dimensions and 100% background transparency. Using wrong color modes (CMYK instead of RGB) will also lead to rejection.
Using EzStampify's Sticker or Emoji Presets ensures your images automatically match official size and margin requirements (stickers with safety margins, emojis without), virtually eliminating technical submission errors.
Intellectual Property Rights (Clause 5.1)
Clause 5.1 regarding 'Intellectual Property Rights Infringement' is strictly enforced. Avoid logos, car license plates, or trademarked product names in your designs. This also applies to your sticker title and description.
Using proper nouns like 'LINE', 'Twitter', or 'ChatGPT' in your metadata will lead to rejection. For AI-generated content, ensure that the materials used do not violate third-party terms of use. Always verify the commercial rights of your AI tools before submitting.
If using characters from 3D modeling software like VRoid, always attach proof of commercial usage rights during your application.
Personal Privacy & Rights
When using photos of people, you must be able to prove that you have their permission. Rejection may occur if the review team cannot verify the relationship between the applicant and the subject.
For stickers featuring children, avoid photos with excessive skin exposure (such as in diapers) as these are strictly banned under moral guidelines.
Morals & User Experience (Clause 3.15)
Pay close attention to 'Clause 3.15: Items designed to confuse or disgust users.' Specifically for animated stickers (APNG), intense flashing is strictly prohibited as it may cause discomfort or health issues.
LINE also bans violent words, aggressive hand gestures, and promotional content for alcohol or tobacco. Excessive skin exposure (even in non-sexual contexts like hot springs) is restricted under Clause 3.3 and will require modification.
Cultural and Religious Taboos
Global sales mean your stickers must respect worldwide cultures. For instance, stickers featuring pigs may be restricted for sale in certain Islamic nations via the review process. Be mindful of religious icons and symbols to ensure they don't cause offense in target markets.
Practicality & Communication Utility
Stickers that offer no communication value—such as plain landscape photos without text or characters that are too small to see on a smartphone screen—will be rejected for 'poor visibility' or 'lack of utility.'
Always test your stickers on both light and dark chat themes to ensure text and outlines are clearly legible for the user.
Tag Mismatch: Visuals vs. Keywords
LINE stickers use a 'Suggest (Tag)' feature to show relevant stickers when users type keywords. If the assigned tag significantly differs from the actual image or text (a 'tag mismatch'), the set will be rejected.
Avoid confusing users by, for example, tagging an angry-face sticker with 'Congratulations'. While tags are optional, if you choose to set them, ensure each keyword accurately reflects the specific sticker's meaning and expression.