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Defines the (up to) 4-character Db2® subsystem or group ID for the Db2 system that ZDT/Db2 will connect to. The 4-character value will appear on the ZDT/Db2 primary option menu when ZDT/Db2 is connected to the Db2 system or group.

You must specify at least one HFM2SSDM macro definition, and the last (or only) HFM2SSDM macro definition must specify SSID=DEFAULT. If you have already specified a site-specific value for SSID in your last HFM2SSDM macro, you must supply further HFM2SSDM macro in which the only statement is SSID=DEFAULT. See example DG02S in Examples of HFM2SSDM macros.