we can link absence type to absence quotas in back end
configuration, i.e, 

selection rule----> generation rule----> absence
quota--->deduction rule--->counting rule---> absence type.

The above one is the link between absence to absence quota.

An A/A Types can be deducted from quota only if a 
relationship already exists between A/A type and Applicable 
Quota. 

This relationship is established by an assignment made in 
the IMG under Managing Time Accounts Using A/A Quotas -> 
Quota Deduction using A/A.