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Communication Structures

Communication structures form the basis of the LIS inbound interface for external data (LIS inbound interface).

The communication structure must contain a date field of type DATS.

It is recommended that you use the following field types for indicators that can be totalled: CURR (currency field), QUAN (quantity field), DEC and NUMC (for other field values that can be totalled), CHAR, DATS (date field), TIMS (time field). If you use currency and quantity fields, you must also include the corresponding unit (type UNIT) and currency key (CUKY) in the communication structure. If possible, you should use the SAP standard data elements.

Note

• If you wish to use IDocs, the sender system (your system) must serve the IDoc interface, or be able to perform Remote Function Call (RFC).

• Long names are not supported in LIS. You cannot include fields in the fields catalog if their table name/structure name/field name has more than ten characters. This also applies to communication structures used in the LIS inbound interface.

• Before you use IDocs as communication structures, you need to gain an overview of the following basic concepts: , the different types of IDoc, and segments).

• Before you use dictionary structures as communication structures, you need to gain an overview of how to use and maintain structures.