Validity Period for Available
Capacity
Defines the period of time for which the available capacity of a resource is generated in SAP liveCache.
You specify the validity period of a resource in the master data on the General Data tab page in the Days +/ Days – fields. The specified number of days lie before and after the date on which the resource was saved in the SAP liveCache. Depending on the resource type, the system generates a continuous available capacity or SNP bucket capacity.

For performance reasons, you should only generate the available capacity for the time period for which you want to schedule the resource.
In the following cases, the system automatically updates the available capacity of a resource in SAP liveCache:
· When you create the resource
· When you change and save planning-relevant master data for the resource
· When you manually save the resource using the liveCache check function on the initial screen for resource master data.
If the available capacity is not updated for a long time, the capacity available for scheduling in the future reduces as time progresses; the system does not automatically delete the capacity in the past. Using the report /SAPAPO/CRES_CAPACITY_LENGTHEN, you can update the available capacity of resources relative to the time at which the report is executed, without having to save them again.

We recommend that you schedule this report periodically as a background job.
For more information, see the report documentation.