Generated Data Types of the ALE Interface

The following objects are generated from the application module:

• The Customizing objects required at runtime

• The mapping for complex data types:

  Generated Object	Generated Name of Object
  Message	(Maximum 30 characters) proposed from the function module name
  IDoc structure	(Maximum 30 characters) is derived from the message - the last two characters are extended by 01 (message <= 28 characters) or are replaced by 01 (message > 28 characters)
  Segments	By default, the segment name begins with E1 for SAP and Z1 for customers, or namespace /.../. A meaningful and unique segment name is assigned as follows:
  The segment name in the application system (max. 27 characters) is derived from the structure name: If the structure name has less than or exactly 23 characters, the segment name is copied directly. If the structure name has more than 23 characters, the system truncates it to 23 characters by cutting off the leading, 'less significant' part. A number is assigned to the remaining characters to ensure the shortened name is unique. If numbers 01 to 99 have already been used, numbers 100 to 999 are then assigned until the segment name is unique. This also ensures that new segment names are created each time the same structure is used in the complex data type. Example ( Namensraum:/../) E1 or Z1 followed by 01..99 (shortened) structure name For this reason we recommend you give the structure a meaningful name, but no longer than 23 characters.
  The segment name in SAP NetWeaver (maximum 10 characters) is derived from the corresponding structure type name. The structure type name is the text next to the segment name; for example, E1 or Z1, followed by the structure type name. If the segment name exceeds 10 characters, a dialog box appears for you to enter a suitable name. If a structure is used more than once in a complex data type, new segments names are required for the same structure. For each segment a technical field with name APPL_SNAME is inserted into the first line of the generated segment and filled by the ALE layer at runtime. This field indicates the application structure from which the segment has originated. It does not have a business meaning and is therefore not relevant for applications. This also means that no component in the structure of the complex data type is allowed to be called APPL_SNAME. Segments can be reused. This means that segments generated from the same structure can also be used in another IDoc type, provided the same structure is used in another complex data type.

• The interface modules

  Generated Object	Generated Name of Object
  Outbound function module Each IDoc always contains one application object only	(Maximum 30 characters) ALE_function_module_name (default)
  Inbound function module IDocs are always transferred to the application individually or in packets of objects.	(Maximum 30 characters) IDOC_INPUT_message (default)