Method: IF_EX_WLF_ADDITIONAL_DATA~CHANGE_AT_UPDATE
Method: IF_EX_WLF_ADDITIONAL_DATA~CHANGE_BEFORE_UPDATE
Method: IF_EX_WLF_ADDITIONAL_DATA~CHECK_BEFORE_UPDATE
Method: IF_WLF_DOCUMENT~CHANGE_BEFORE_UPDATE
Method: IF_WLF_DOCUMENT~CHANGE_AT_UPDATE
Method: IF_WLF_DOCUMENT~CHECK_BEFORE_UPDATE