Hi Naushin, Obvioulsy replace 'FreeFormText' with your own field name,
but this should do it:
displayname=Brandtextmode=truevalueexpression=IF({DE:CSBrand}="Other",{DE:FreeFormText},IF({DE:BrandDepartmentNonAutomation}="Other",{DE:FreeFormText},IF(ISBLANK({DE:CSBrand}),{DE:BrandDepartmentNonAutomation},{DE:CSBrand})))valueformat=customDataLabelsAsString
Best Regards,Rich