Update Property In Array Of Objects

@Stefah: Can i need to create one more expression rule for updatecdt with three inputs like as you said[data,field,value] ?
If it is correct but you are passed onlly two parameters in updatecdt function in line num 34

updatecdt() has two parameters, the CDT itself and a list of fieldname/value pairs. Why would you want to create another expression?

ok , thanks for the response stefan . i passed below data as inputs it's return an error.
Expression evaluation error at function 'updatecdt' [line 29]: Error evaluating function 'updatecdt' : Length of input arrays must equal length of CDT/Dictionary array

data: {
{name:"vsuram",dept:"IT"},
{name:"vsuram",dept:"IT"}
},


Field:"Test"
value:123456

Your example data is a list of data. To update this you have to use the apply() function like apply(rule!updateCdt(data:_, field: "Test", value:123456), local!data)

It might not work for dictionaries without some changes. I tested with CDT types only.

Ok thanks stefan , as of my knowledge For dictionaries the below rule work

updatecdt(ri!items,{"TEST":repeat(count(ri!items),ri!value)})