QA00000397367_What is S4F code in CST license and how to resolve the error related to it?
Question:
What is S4F code in CST license and how to resolve the error related to it?
Answer:
In some cases, CST users may get the following license error when they try to start CST software “A valid CST start feature S4F cannot be found or its Max Release Date value is not sufficient”. They may wonder what the function of S4F is and why they may have multiple S2X but only one S4F.
The short answer is that S4F is a SITE license key, which means one key is sufficient for unlimited number of users and machines. S4F is a technical (cost free) start-up key required to open CST Studio Suite and any other CST licensed application. It is normally bundled with either legacy (S2F) or current (S2X) front-end licenses.
Typically the error message referring to S4F will occur if S4F key expired (hence missing from the license server), or its Max Release Date (i.e. Support End Date) is not sufficient to support the current release/service pack. CST users need to reach out to Simulia sales representatives to obtain the latest license file or renew the software maintenance.