Bucket Consumption in SNP

Hello Gurus,

we have a group of workcenters(reactors) maintained in ECC.

No. of individual capacities :5

Utilization :100%

operating time :8hrs/day

Total bucket capacity per day = 40hrs

Now i have an operation in the recipe with this resource being assigned and the Total capacity required is 80hrs.

SNP PDS shows 2days for this activity  based on the bucket capacity available which is 80/40 =2 days.

since we can use 1 capacity at a time for a specific order; System should be calculating  80hrs/8 hrs/day= 10Days.. No distribution keys maintained in ECC system.

how to fix the SNP PDS in APO- do we need to go with the enhancement option.

Please advice

thanks

Shyam