When you submit or edit a time off request, after you click Submit you may see the following error:
There was an error
You need to use all your available days from "Annual Leave" policy before you can request this one
The occurs because an admin as enabled the following setting within the Conditions section of the time off policy:
Require another policy to be fully used before time off from this policy can be requested
The only way to resolve this is to ensure that you use up all the balance of the other time off policy specified in the error. Alternatively, an admin user needs to disable the setting within the time off policy.