Exact same DAX code does not work on the same report

[AnuragThakur514]

Hi all,
to give a bit of context, I am trying to create a calculate column that has 3 month sum of orders. 
I created a new column on one query/table.
it worked but the exact same DAX code throws an error.
Copy pasted the exact same DAX to another query.

[tamerj1]

Hi @AnuragThakur514 
Make sure you are creating a calculated column but not a measure and make sure it is being created in the correct table.