The estimateDate takes into account the total delivery time but only considering the days that the carrier delivers, so in the case of this example it does not consider weekends. But the lastDeliveryDay is calculated as calendar days (consecutive days), which is today date + delivery time + maximum number of days configured for scheduled delivery, as it count consecutive days, it will consider the weekends.

For the system to assemble the available delivery window, it will compare if:

lastDeliveryDay > estimateDate : TRUE

And only if meets this condition it will create the delivery window.

But with a total transit timecost excessive high, there is an inconsistence with the variable estimateDate and lastDeliveryDay, the condition will return false, and therefore no delivery window will be created.

Change the shipping configuration to the following:

• Processing days and hours of warehouse with 100 days;
• Timecost in the spreadsheet rate file with 1 day;
• Remove weekends and holidays for the shipping policy configuration;
• Schedule delivery for Monday to Friday from 0h to 23:59h;
• Maximum delivery time in Schedule delivery configuration for 5 days;

For this configuration will lead to lastDeliveryDay=10/05/2024 and the estimateDate=14/06/2024; And thus the condition will be false:

10/05/2024 > 14/06/2024 : FALSE

and no delivery window will be created;

There is no workaround available.