Clarification on text line limits and \n handling in Kakao message templates

Hello Kakao Team,

We are currently testing message templates and encountered some issues related to line breaks and text truncation.

According to your documentation (Character Limits FAQ), message titles and content areas are displayed up to 2 lines, and if the text exceeds 2 lines, it is truncated with an ellipsis (“…”).

However, we would like to clarify two specific points:

  1. Maximum characters per line
  • How many characters can be displayed in a single line before it automatically wraps to the next line?
  • Is there an official character count limit per line, or does it depend on device screen width and font rendering?
  1. Behavior when \n (line break) is used
  • Example A:
ABC Premium Sofa is available
Please contact us for more details.

In this case, since we explicitly added \n, the first line already takes up one or more lines. When Kakao encounters the \n, it forces a new line. If the total number of lines exceeds 2, the system truncates at the end of the 2nd line and adds “…”.

    • Example B:
      ABC Premium Sofa is available, please contact us for more details.
      Here, if the text length is long, Kakao automatically wraps lines. When the wrapped text exceeds 2 lines, it also truncates with “…”.

We would like to confirm:
• The exact rule Kakao uses for counting lines when both automatic wrapping and manual line breaks (\n) are involved.
• Whether the ellipsis is always added at the point where the 2nd line ends, regardless of whether the break was automatic or manual.

This clarification is very important for us to design message templates correctly.
Thank you for your support!

안녕하세요.

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[@tim.l @woody.ho]

Hello.

The title and description can each be displayed up to a maximum of 2 lines.
However, if either the title or description is provided as an empty string, the other field can be displayed up to a maximum of 4 lines.

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Thank you for your support!

We would like to confirm:

  • How many characters can be displayed in a single line before it automatically wraps to the next line?
  • Is there an official character count limit per line, or does it depend on device screen width and font rendering?

Hello,

Please note that line breaks occur automatically, but they depend on the user’s device resolution and font size. Therefore, it is difficult to specify the exact number of characters. We kindly ask for your understanding.

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