# PKSER System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [P](Help%20System/GSTARCAD/2026/System%20Variables/P/(P).md) ## Function Description: The PKSER system variable is used to control product identification code. (Read-Only) | | | | --- | --- | | Type | Strings | | Saved in | Registry | | Initial value | "" | --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Pgsv/PKSER.html) · © Gstarsoft Co., Ltd.