if equals 2 values in a dimension

[davyqliks]

Hi Experts,

in my load script i have an if statement that defines if a po number is  example 'Value A' or 'Value B'

the dimension is named as [We Care].

A PO number can have both values on separate so i can have:

po1234 'Value A'

po1234 'Value B'

i have to write an if in the table to state if We Care = value A and Value B the result is value A

however, i cannot associate my effort below to the field PO number

=If([We Care] = 'value A' and 'value B' , 'value A','value B')

can anyone advise on how i can use the above for all values in a PO number as there is no value of value A and value B in a single cell return.

I hope i explained that ok and someone has the answer i'm looking for.

Thanks in advance 

Daniel