The mapping between the E4C Object Type which can be used by the Checklists and the corresponding SAP Object Type (e.g. BUS1039 – Sales Document, EQUI – Equipment). It is used to create a GOS-Link between the Checklist and the referenced object. It is also used by the transaction /PACG/ECM_CHECKL_SHW (Checklists display).
Learn more about adding checklist overview to GOS menu:
Make Reported Checklist accessible from IW32/IW33 GOS Menu
Make Reported Checklist accessible from Activity transactions (/PACG/ECM_ACTI_VC0x)