I executed the FTP download for the 2022 yearly CARS process, and though it has ++ASSIGN statements, the SMP/E RECEIVE command doesn't show of any PTFs received.
For example, PTF LU08176 is included in ++ASSIGN for YEAR 2022, and I executed the RECEIVE (shown in attachment).
The RECEIVE SMPOUT DD reports message: "GIM24801W NO SYSMODS SATISFIED THE OPERANDS SPECIFIED ON THE RECEIVE. "
In the CSI, searching for the PTF in the GLOBAL zone reports: "SYSMOD LU08176 was not found in GLOBAL zone"
Release : 14.0
See the following URL, from a procedure to implement IDMS PTFs, noting that though the product is different, the general procedure would be the same: