SAP Function Module search on WP_C
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WPOCC_CHECK_CHANGEABLE_PO - Check Purchase Orders to Be Changed
WPOCC_CHECK_CHANGEABLE_PO_HEAD - Check Purchase Orders to Be Changed
WPOCP_SAVE_CHANGED_PO_DATA - Saves Changed PO Items
WPOCS_SELECT_POS - NOTRANSL: Selektion der Bestellungen für Backordering
WP_CHANNELS_GET - Read channel assignments
WP_CHANNELS_SET - Write Channel Reservations
WP_CHANNELS_SET_SU - WP_CHANNELS_SET for sy-uname
WP_CONVERT_LANGUAGE - Defines Workplace Language
WP_COUNTRIES_GET - Retrieve countries of a use
WP_CUSTOM_GET - Read Table TWPCUSTOM
WP_CUSTOM_GROUP_GET - Read Table TWPCUSTOM
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