Unknown Error


What is this error?

This error occured when I added "[SUM:XXXX][LOOKUP:YYYY]"





  • Hi,


    Pls correct the syntax,




  • Hi Vignesh, thx for the reply!

    I tried, but still cause a same error...

  • I am not sure about the error reason,

    #1. Are you facing this issue only for this line item? try writing the formula for some other line items

    #2. Can you refresh the model and try again/ try it in some other browser


    Post the screenshot of your source data and target data info.


    ~Vignesh M

  • prabhu

    Hi @Tsuyoshi_Inoue,


    Such type of error occurs if your formula is wrong.


    This error doesn't give description of why it has occurred, but there is a mistake in your formula.


    You are using the combination of sum and lookup, so check your formula.


    As per best practice use Sum and Lookup Individually, because when you use individually performance or calculation speed gets increased.




    Sorna Raja Prabhu

  • Hi @Tsuyoshi_Inoue,


    do you get this error every time you try to write your formula?


    I would expect that this was caused due to the restore action performed by someone else in the meantime.


    Anyway, your syntax is also not correct, should be SUM: XX, LOOKUP: XX.


    However, as a part of best practices, it is not recommended to combine this two functions together. Check out this short class: https://community.anaplan.com/t5/On-Demand-Courses/Compound-Functions-SUM-LOOKUP-SELECT/ta-p/63715