SAP Code Page Solutions Before Unicode
The code page and language configurations described in this chapter are solutions of the past.
SAP's strategy is to move all existing customer systems to Unicode. Depending on system types, basis releases, database sizes and code page configurations, a set of different conversion solutions are available.
With release SAP NetWeaver 7.0 (SR 3) all new installations of SAP systems are Unicode.
SAP Blended Code Pages and MDMP configurations are not supported for new installations.
Existing SAP Blended Code Pages and MDMP configurations are not supported with release SAP NetWeaver 7.0 and higher (including all Enhancement Packages).
Existing SAP Blended Code Pages are not supported after switch or upgrade of operating systems.
Single Code Page
One standard system code page → only a limited set of languages is supported in these systems. The number and combination of languages that are supported cannot be altered, but there are no restrictions on users.
Probably the most frequently used SAP code page is 1100 (based on ISO 8859-1), which covers the characters of the Western European languages. Other SAP Code Pages like 1401 (Eastern European languages), 8000 (Japanese), 8400 (Simplified Chinese), 8300 (Traditional Chinese), 1500 (Russian), and more are also based on one ISO 8859 code page. Note: English is covered by all SAP Code Pages because all ISO code pages contain the 7 bit US-ASCII characters.
For a detailed overview of languages, language keys and SAP Code Pages, read SAP Note 73606 and the attached documentsSupportedlanguages.xls and R3languages.pdf. For known problems with non-Unicode code pages, read SAP Note 838402.
SAP Blended Code Page
Multibyte blended code pages which contain characters from several standard code pages. SAP proprietary code pages that contain characters from one or more standard code pages. This increases the combinations of languages that can be used. Functionally, a Blended Code Page system uses a single code page.
There are two types:
1. Ambiguous Blended Code Pages, where two characters can share the same code point
2. Unambiguous Blended Code Pages, where each code point refers exactly to one character
For a detailed description, click SAP Blended Code Page Solution.
MDMP (Multi Display/Multi Processing)
„Multiple Display/Multiple Processing". Systems which deploy more than one system code page. By allowing dynamic code page switching on the application server, any combination of standard code pages in one system are permitted. This allows languages to be used together in one system although the characters of those languages are not in the same code page.The logon language determines the code page that is active for each user. MDMP configurations are only supported with R/3.