During the conversion process, some characters may not be converted. Here are two reasons:
The character exists (is encoded) in the source character set, but it does not exist in the target character set. For example, the OE ligature, is part of the Macintosh character set (code point 0xCE). This character does not exist in the ISO 8859-1 character set. If the OE ligature exists in data that is being converted from the Macintosh to the ISO 8859-1 character set, it causes a conversion error.
The character exists in both the source and the target character set, but in the target character set, the character is represented by a different number of bytes than in the source character set.
For example, 1-byte accented characters (such as á, è) are 2-byte characters in UTF-8; 2-byte Thai characters are 3-byte characters in UTF-8. You can avoid this limitation by configuring the enable unicode conversion option to 1 or 2.
