networkdays between dates

Hi, Etienne_1995 

Can you provide a sample data that does not contain privacy? I tried to look at the screenshots you provided, but the data part is not clear, so that it is difficult for me to see what the problem is based on your M code. 

In addition, you can troubleshoot the following two points:
1. Make sure your M code logic is correct and correctly calculates the date of the non-working day. You can split your M code into multiple columns to determine which part of the calculation error.
2. Try using a simple dataset to check the reason for your Mcode calculation error.

How to Get Your Question Answered Quickly

If it does not help, please provide more details with your desired output and pbix file without privacy information (or some sample data) .

Best Regards

Jianpeng Li

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