PS_CUST_HOME

PeopleTools has been delivering significant changes to PS_HOME over the past several releases in order to provide a better, more secure organization for the PeopleSoft middle tiers. The improvements began with PS_CFG_HOME (Configuration Home), which was introduced in PeopleTools 8.50. With that release, domain configuration and log files were removed from PS_HOME, allowing us to make PS_HOME read-only. PS_APP_HOME (Application Home) was introduced in PeopleTools 8.52, providing the ability to separate application-specific code from PS_HOME, which helped clarify what must be evaluated at upgrade time.

PeopleTools 8.53 extends this approach to customizations through PS_CUST_HOME (Customization Home). By using PS_CUST_HOME for any customer-specific code, a clear distinction is made between code delivered by PeopleTools and PeopleSoft applications and that produced by individual customers. This change is optional; customers may continue to use a traditional PS_HOME if desired.

Source: PT853RVP Document