Diagnosis
Your demand for business events is greater that the number of eventsyou can create in the planning. This is becuase of the planningoptions.

Procedure
If you wish to change the planning options, cancel the log and deselectthe option 'Resource requirements covered'. The business events willthen be created despite missing resources.
A second possibility open to you is to reduce the number of resourcesflagged as 'required' in the 'Presettings resources/resource types' andto start the planning again.
As a third alternative, you can assign new resources to the criticalresource types.
You can, however, accept the smaller number of business events proposedand carry out the planning for the remaining demand at a later time.