#INVALID DATA TYPE need to be blank instead


I need help, I'm creating a formula to calculate to number of night which mean (-1 for the returning date).

Current formula: =NETDAYS([Tentative Departure Date]@row, [Tentative Returning Date]@row) - 1

Works well but when departure & returning date are blank I #INVALID DATA TYPE.

What to do?

Thank you!



  • Andrée Starå
    Andrée Starå ✭✭✭✭✭✭

    Hi @Marc_CIPO

    I hope you're well and safe!

    Try something like this.

    =IF(OR([Tentative Departure Date]@row = "", [Tentative Returning Date]@row = ""), "", NETDAYS([Tentative Departure Date]@row, [Tentative Returning Date]@row) - 1)

    Did that work/help?

    I hope that helps!

    Be safe, and have a fantastic week!


    Andrée Starå | Workflow Consultant / CEO @ WORK BOLD

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