SAP CROSSTRANS APP BUFFER GLOSRY documentation, setup help and usage info

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cross-transaction application buffer
Application buffer in the DS:ABEN.SHARED_MEMORY_GLOSRY>Shared Memory
. ABAP programs access cross-transaction application buffers by specifying SHARED BUFFER or SHARED MEMORY as medium with the statements EXPORT and IMPORT for data clusters . The difference between the two types lies in the system behavior when it reaches its memory limit.