XI supports UTF-8 (standard which contains almost every character that exist in the world's languages). But mapping fails when some special characters like " &"(Corresponding hex value is 26) and " "(Corresponding hex value is 1A) comes in the payload.But both are part of Basic Latin block of the Unicode character set. (US-ASCII). Even sap help claims file adaper supports US-ASCII. But in contrary it fails in mapping when these kind of special characters comes. Is there any document where we can check what are all the characters that XI supports or what are all the characters that XI won't support when they comes in payload ??