Hello Sanjog, How did you resolved the issue? We have a similar issue. Duration is 80 hours fixed in ECC master receipe. Resource is available for 8 hours per day, which means 10 days fixed duration.
In APO, fixed duration is 4 days (80 / 24 hours) = 3.33 so 4 days.
Ideally SNP fixed duration should be 10 days, as available SNP Bucket capacity is 8 hours per day and not 24 hours
Regards,
Bhavesh