Filter Collection with OR

[HeleneKnox]

Hi, 
I have a collection with 3 columns that I then want to filter down into another collection. All columns and its content should come with but I only want to bring the rows where in one of the columns says A or B. But  I cant get it to work.  I use "'columnname'= 'A' OR 'B'" but i get this error message
What am I doing wrong?

[Neel1]

hello - this one works for me
Output Collection:-

[Prasanth_IRPA_Dev]

Hi

check below image, Plz mention the column name explicitly 

[_Amlansahoo]

Hi Helene,

Keep this link with you which will help you solve your issue,
https://portal.blueprism.com/customer-support/support-center#/path/Automation-Design/Studio/Visual-Business-Objects/1194312962/What-is-the-syntax-for-an-expression-used-by-the-Filter-Collection-action...

Thanks,
Amlan