What process creates accounting entries for the Analysis Type DEF and OLT

When transactions related to a Rate-Based contract have not been accounted for (e.g. PSA_ACCTGGL has not been executed upon them) prior to delivery to Billing, and are subsequently marked ‘Defer’ in Billing, where does the accounting come from? What process causes this to happen? When transactions are marked ‘Defer’ in Billing they are directly written back to PROJ_RES_TMP_BI. Then, when the PC_BI_TO_PC process is executed, these transactions in PROJ_RESOURCE now have the Analysis Type DEF. In the DEMO database I consistently see an Accounting Rule for the DEF Analysis Type in the many Business Units but the PSA_ACCTGGL process will