Hi,
You can manually free the licenses in the grace period by using the API for each server that has a license in the grace period. To check which servers have licenses that are in the grace period, you can go to the **Licenses > License Usages** menu in the Solution Manager Administration Tool, and check which licenses have a yellow dot in the **Status** column.
For more information, you can check out the [License Usages Table](https://community.denodo.com/docs/html/browse/latest/solution_manager/administration/license_management/license_usages_table/license_usages_table) section of the Solution Manager Administration Guide.
Once you identify which servers have licenses that are in the grace period, you can use the API to free the license from each of them:
`http://[LICENSE_MANAGER_HOST]:[LICENSE_MANAGER_PORT]/externalShutdown?nodeIp=&hostDomainName=[VDP_SERVER_HOST]&port=[VDP_SERVER_PORT]&product=VDP`
You can find more information and examples about this API in the [Free License Usage](https://community.denodo.com/docs/html/browse/latest/solution_manager/administration/license_management/license_usages_table/license_usages_table) section of the Solution Manager Administration Guide.
As for the grace period, since it is a default setting within Denodo, it can't be changed at this time.
Hope this helps!