Array elements can only be selected using an integer index

Question

I have a List Group Members action to get the members of a security group >> then I am trying to build semicolon separated string for the members emails inside a compose action, as follow:-

but i got this error;-

'The template language expression 'join(outputs('List_group_members_2')?['body/value']?['mail'],';')' cannot be evaluated because property 'mail' cannot be selected. Array elements can only be selected using an integer index.

Any advice?

Thanks

Answer 1

It is not possible to do in your way. To do:

• declare a new variable of type array

• use Apply to each to iterate of each users part of the group
• check if the user has an mail, if true, append it to the array
• use compose and join if you want to join the values with a comma:

join(variables('Emails'), ',')

You can also use a string variable and concatenate emails with a comma on each iteration.

Workflow: