# Auto Encoding

Auto Encoding helps reduce the number of message parts in an SMS message by converting characters from glyphs into transliterated characters.

For example, instead of using **six** of your allowable characters to send a US dollar sign in your message, the Auto Encoding feature will send it as **one** character. This is because `$` in Unicode becomes `U+FE691`.

Learn more about [character support](/docs/sms/resources/message-info/character-support) and [using special characters](https://community.sinch.com/t5/SMS/How-can-I-use-a-special-character-in-my-SMS-message/ta-p/8571) in your SMS messaging.

## How to enable Auto Encoding

[Contact your account manager](https://dashboard.sinch.com/account/details) to have the Auto Encoding feature enabled on your account.

## Testing

To see how your message will look after Auto Encoding is enabled, and to see the number of message parts generated, use the [POST Dry run method](/docs/sms/api-reference/sms/batches/dry_run).

## Limitations

- Emojis will remain in Unicode.
- Languages that are character-based will still remain in Unicode.
- Any character not found in the table below becomes Unicode.
- Only messages that exceed the alloted characters will be converted. Otherwise, they will remain in Unicode if your whole message fits in one message part.


## Characters replaced by Auto Encoding

The following Unicode characters are replaced by GSM characters. Note that apparent empty spaces are varying forms of whitespace.

| Unicode | Character | Replacement |
|  --- | --- | --- |
| \u00ab | « | " |
| \u00bb | » | " |
| \u201c | “ | " |
| \u201d | ” | " |
| \u02ba | ʺ | " |
| \u02ee | ˮ | " |
| \u201f | ‟ | " |
| \u275d | ❝ | " |
| \u275e | ❞ | " |
| \u301d | 〝 | " |
| \u301e | 〞 | " |
| \uff02 | ＂ | " |
| \u2018 | ‘ | ' |
| \u2019 | ’ | ' |
| \u02bb | ʻ | ' |
| \u02c8 | ˈ | ' |
| \u02bc | ʼ | ' |
| \u02bd | ʽ | ' |
| \u02b9 | ʹ | ' |
| \u201b | ‛ | ' |
| \uff07 | ＇ | ' |
| \u00b4 | ´ | ' |
| \u02ca | ˊ | ' |
| \u0060 | ` | ' |
| \u02cb | ˋ | ' |
| \u275b | ❛ | ' |
| \u275c | ❜ | ' |
| \u0313 | ̓ | ' |
| \u0314 | ̔ | ' |
| \ufe10 | ︐ | ' |
| \ufe11 | ︑ | ' |
| \u00f7 | ÷ | / |
| \u00bc | ¼ | 1/4 |
| \u00bd | ½ | 1/2 |
| \u00be | ¾ | 3/4 |
| \u29f8 | ⧸ | / |
| \u0337 | ̷ | / |
| \u0338 | ̸ | / |
| \u2044 | ⁄ | / |
| \u2215 | ∕ | / |
| \uff0f | ／ | / |
| \u29f9 | ⧹ | \ |
| \u29f5 | ⧵ | \ |
| \u20e5 | ⃥ | \ |
| \ufe68 | ﹨ | \ |
| \uff3c | ＼ | \ |
| \u0332 | ̲ | _ |
| \uff3f | ＿ | _ |
| \u20d2 | ⃒ | | |
| \u20d3 | ⃓ | | |
| \u2223 | ∣ | | |
| \uff5c | ｜ | | |
| \u23b8 | ⎸ | | |
| \u23b9 | ⎹ | | |
| \u23d0 | ⏐ | | |
| \u239c | ⎜ | | |
| \u239f | ⎟ | | |
| \u23bc | ⎼ | - |
| \u23bd | ⎽ | - |
| \u2015 | ― | - |
| \ufe63 | ﹣ | - |
| \uff0d | － | - |
| \u2010 | ‐ | - |
| \u2022 | • | - |
| \u2043 | ⁃ | - |
| \ufe6b | ﹫ | @ |
| \uff20 | ＠ | @ |
| \ufe69 | ﹩ | $ |
| \uff04 | ＄ | $ |
| \u01c3 | ǃ | ! |
| \ufe15 | ︕ | ! |
| \ufe57 | ﹗ | ! |
| \uff01 | ！ | ! |
| \ufe5f | ﹟ | # |
| \uff03 | ＃ | # |
| \ufe6a | ﹪ | % |
| \uff05 | ％ | % |
| \ufe60 | ﹠ | & |
| \uff06 | ＆ | & |
| \u0326 | ̦ | , |
| \ufe50 | ﹐ | , |
| \u3001 | 、 | , |
| \ufe51 | ﹑ | , |
| \uff0c | ， | , |
| \uff64 | ､ | , |
| \u2768 | ❨ | ( |
| \u276a | ❪ | ( |
| \ufe59 | ﹙ | ( |
| \uff08 | （ | ( |
| \u27ee | ⟮ | ( |
| \u2985 | ⦅ | ( |
| \u2769 | ❩ | ) |
| \u276b | ❫ | ) |
| \ufe5a | ﹚ | ) |
| \uff09 | ） | ) |
| \u27ef | ⟯ | ) |
| \u2986 | ⦆ | ) |
| \u204e | ⁎ | * |
| \u2217 | ∗ | * |
| \u229b | ⊛ | * |
| \u2722 | ✢ | * |
| \u2723 | ✣ | * |
| \u2724 | ✤ | * |
| \u2725 | ✥ | * |
| \u2731 | ✱ | * |
| \u2732 | ✲ | * |
| \u2733 | ✳ | * |
| \u273a | ✺ | * |
| \u273b | ✻ | * |
| \u273c | ✼ | * |
| \u273d | ✽ | * |
| \u2743 | ❃ | * |
| \u2749 | ❉ | * |
| \u274a | ❊ | * |
| \u274b | ❋ | * |
| \u29c6 | ⧆ | * |
| \ufe61 | ﹡ | * |
| \uff0a | ＊ | * |
| \u02d6 | ˖ | + |
| \ufe62 | ﹢ | + |
| \uff0b | ＋ | + |
| \u3002 | 。 | . |
| \ufe52 | ﹒ | . |
| \uff0e | ． | . |
| \uff61 | ｡ | . |
| \uff10 | ０ | 0 |
| \uff11 | １ | 1 |
| \uff12 | ２ | 2 |
| \uff13 | ３ | 3 |
| \uff14 | ４ | 4 |
| \uff15 | ５ | 5 |
| \uff16 | ６ | 6 |
| \uff17 | ７ | 7 |
| \uff18 | ８ | 8 |
| \uff19 | ９ | 9 |
| \u02d0 | ː | : |
| \u02f8 | ˸ | : |
| \u2982 | ⦂ | : |
| \ua789 | ꞉ | : |
| \ufe13 | ︓ | : |
| \uff1a | ： | : |
| \u204f | ⁏ | ; |
| \ufe14 | ︔ | ; |
| \ufe54 | ﹔ | ; |
| \uff1b | ； | ; |
| \ufe64 | ﹤ | < |
| \uff1c | ＜ | < |
| \u0347 | ͇ | = |
| \ua78a | ꞊ | = |
| \ufe66 | ﹦ | = |
| \uff1d | ＝ | = |
| \ufe65 | ﹥ | > |
| \uff1e | ＞ | > |
| \ufe16 | ︖ | ? |
| \ufe56 | ﹖ | ? |
| \uff1f | ？ | ? |
| \uff21 | Ａ | A |
| \u1d00 | ᴀ | A |
| \uff22 | Ｂ | B |
| \u0299 | ʙ | B |
| \uff23 | Ｃ | C |
| \u1d04 | ᴄ | C |
| \uff24 | Ｄ | D |
| \u1d05 | ᴅ | D |
| \uff25 | Ｅ | E |
| \u1d07 | ᴇ | E |
| \uff26 | Ｆ | F |
| \ua730 | ꜰ | F |
| \uff27 | Ｇ | G |
| \u0262 | ɢ | G |
| \uff28 | Ｈ | H |
| \u029c | ʜ | H |
| \uff29 | Ｉ | I |
| \u026a | ɪ | I |
| \uff2a | Ｊ | J |
| \u1d0a | ᴊ | J |
| \uff2b | Ｋ | K |
| \u1d0b | ᴋ | K |
| \uff2c | Ｌ | L |
| \u029f | ʟ | L |
| \uff2d | Ｍ | M |
| \u1d0d | ᴍ | M |
| \uff2e | Ｎ | N |
| \u0274 | ɴ | N |
| \uff2f | Ｏ | O |
| \u1d0f | ᴏ | O |
| \uff30 | Ｐ | P |
| \u1d18 | ᴘ | P |
| \uff31 | Ｑ | Q |
| \uff32 | Ｒ | R |
| \u0280 | ʀ | R |
| \uff33 | Ｓ | S |
| \ua731 | ꜱ | S |
| \uff34 | Ｔ | T |
| \u1d1b | ᴛ | T |
| \uff35 | Ｕ | U |
| \u1d1c | ᴜ | U |
| \uff36 | Ｖ | V |
| \u1d20 | ᴠ | V |
| \uff37 | Ｗ | W |
| \u1d21 | ᴡ | W |
| \uff38 | Ｘ | X |
| \uff39 | Ｙ | Y |
| \u028f | ʏ | Y |
| \uff3a | Ｚ | Z |
| \u1d22 | ᴢ | Z |
| \u02c6 | ˆ | ^ |
| \u0302 | ̂ | ^ |
| \uff3e | ＾ | ^ |
| \u1dcd | ᷍ | ^ |
| \u2774 | ❴ | { |
| \ufe5b | ﹛ | { |
| \uff5b | ｛ | { |
| \u2775 | ❵ | } |
| \ufe5c | ﹜ | } |
| \uff5d | ｝ | } |
| \uff3b | ［ | [ |
| \uff3d | ］ | ] |
| \u02dc | ˜ | ~ |
| \u02f7 | ˷ | ~ |
| \u0303 | ̃ | ~ |
| \u0330 | ̰ | ~ |
| \u0334 | ̴ | ~ |
| \u223c | ∼ | ~ |
| \uff5e | ～ | ~ |
| \u00a0 |   |  |
| \u2000 |   |  |
| \u2001 |   |  |
| \u2002 |  |  |
| \u2003 |  |  |
| \u2004 |  |  |
| \u2005 |  |  |
| \u2006 |  |  |
| \u2007 |  |  |
| \u2008 |  |  |
| \u2009 |  |  |
| \u200a |  |  |
| \u200b |  |  |
| \u202f |  |  |
| \u205f |  |  |
| \u3000 |  |  |
| \ufeff |  |  |
| \u008d | � |  |
| \u009f | � |  |
| \u0080 |  |  |
| \u0090 | � |  |
| \u009b | � |  |
| \u0010 |  |  |
| \u0009 |  |  |
| \u0000 |  |  |
| \u0003 |  |  |
| \u0004 |  |  |
| \u0017 |  |  |
| \u0019 |  |  |
| \u0011 |  |  |
| \u0012 |  |  |
| \u0013 |  |  |
| \u0014 |  |  |
| \u2017 | ‗ | _ |
| \u2014 | — | - |
| \u2013 | – | - |
| \u201a | ‚ | ' |
| \u2039 | ‹ | < |
| \u203a | › | > |
| \u203c | ‼ | !! |
| \u201e | „ | " |
| \u2026 | … | ... |
| \u2028 | 
 |  |
| \u2029 | 
 |  |
| \u2060 | ⁠⁠ |  |


[Go back](/docs/sms/resources/message-info/character-support)