- Most emoji's are 2 unicode characters (there's a small set that are a single character)
- Some emoji's are actually combinations of symbols that devices then display as a single symbol.
- e.g. A 'coloured thumbs up' emoji is both a colour symbol followed by the thumbs up symbol. This results in the use of 4 unicode character being required for what appears to be a single emoji.
- e.g. The 'family' emojis are actually a combination of 4 different symbols (man, woman, child, child) and takes 8 characters.
Note: If you are checking a message length using our message builder UI we have an 'on paste' filter that will change a couple of known problem characters. (Apostrophes, single and double quotes and ellipses when pasted from Microsoft Word use unicode characters)
Note: To help users of our API's, we have a set of character replacements which attempt to keep a message as non-unicode. These are similar to our 'on paste' filtering but also includes some things like: 0-width space, unicode space, tab character, hyphens and bullet point characters.
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