Select data from sap tables TMSG
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TMSG1 - Logical Messages and Process Codes in Outb. Procg
TMSG2 - Logical Messages and Process Codes in Inb. Procg
TMSGPERIOD - TMS: Structure for Function Module TMS_UI_POPUP_GET_PERIOD
TMSG_FLAGS - CA-EDI: Flags for process code maintenance
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