Stackable co-termed licenses
Suppose that you start FIC service on August 1, 2025 with a 500-user license (i.e., FC3-10-IDCLD-445-01-12) which expires on August 1, 2026. On October 15, 2025, you decide to add 100 more end-users to your account, so you purchase another license for 100 end-users (i.e., FC2-10-IDCLD-445-01-12). Those two licenses are independent of each other. The 500-user license will expire on August 1, 2026, and the 100-user license will expire on October 15, 2026.
You can also add licenses to an old SKU with a new SKU. If you have a license with the IDCLD SKU, you can add a license with the new IDCLD SKU. For example, on December 1, 2025, you want to add a 25-user license and you want it to expire on the same date as your 500-user license does. In this case, the new co-termed license will be stacked on top of the original 500-user license. The cost of the new license will be prorated so that it expires on August 1, 2026; it will have the same expiration date as the original 500-user license, but with a new limit of 525 users.
In the first case, the new license is independent of the original license, which can be purchased based on its SKU. In the second case, you will have to reach out to our license renewal team (renewals@fortinet.com) for assistance.
For more information, see Time-based SKUs and their services and SKUs vs. applications and realms supported in the Admin Guide.