from your senerio it appears that you have 15 calendar days of float between Dec 31 and Jan 15 so this is a little confusing to me. The building access is NOT delaying the project but the parts delivery is the driving factor.
but to do what you want
option #1 use 2 constraints and a lag
for the acess activity use a primary constraint start on or after 1 Dec and a secondary constraint fnish on or before Dec 31
now for the parts delivery you can use a expect finish date constraint of Jan 15 and put a 10 day lag from the building access activity to the parts delivery.
option #2 use 2 constraints and add a 10 day activity for packing/loading/transportation
for the acess activity use a primary constraint start on or after 1 Dec and a secondary constraint fnish on or before Dec 31
add a 10 day activity for packing/loading/transportation AFTER the access and prior to the installation.
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16 years 3 monthsyou have several options from
you have several options
from your senerio it appears that you have 15 calendar days of float between Dec 31 and Jan 15 so this is a little confusing to me. The building access is NOT delaying the project but the parts delivery is the driving factor.
but to do what you want
option #1 use 2 constraints and a lag
for the acess activity use a primary constraint start on or after 1 Dec and a secondary constraint fnish on or before Dec 31
now for the parts delivery you can use a expect finish date constraint of Jan 15 and put a 10 day lag from the building access activity to the parts delivery.
option #2 use 2 constraints and add a 10 day activity for packing/loading/transportation
for the acess activity use a primary constraint start on or after 1 Dec and a secondary constraint fnish on or before Dec 31
add a 10 day activity for packing/loading/transportation AFTER the access and prior to the installation.