Autoinstall processing of mapsets

Table 1 shows the differences in mapset processing between CICS® regions with program autoinstall active and inactive.

Table 1. Differences in mapset processing between autoinstall and non-autoinstall
Program autoinstall INACTIVE	Program autoinstall ACTIVE
CSD definition is required. CICS attempts to load a referenced mapset with a suffix. If this fails, CICS tries an unsuffixed version. If that is unsuccessful, abend APCT is issued.	CSD definition is not required. Using autoinstall, CICS attempts to load the referenced suffixed mapset or partitionset, then the unsuffixed one. (In each case, a definition is autoinstalled.) The transaction requesting the resource abends only if no version of the resource exists in the library, either suffixed or unsuffixed. If the suffixed mapset was not found in the library, the definition is marked ‘not loadable’.