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Dear all,

I have an output where I try to store a specific item within a variable:

{
 "responses": [
 {
 "responder": {
 "id": "ec543fe8-f834-4526-a568-f0af27939da2",
 "displayName": "Responder1",
 "email": "responder1@contoso.eu",
 "tenantId": "22815bf4-b927-43f0-8bb9-994b37c52d7d",
 "userPrincipalName": "responder1@contoso.eu"
 },
 "requestDate": "2024-07-16T14:26:43Z",
 "responseDate": "2024-07-16T14:27:22Z",
 "approverResponse": "Approve"
 },
 {
 "responder": {
 "id": "cd41a5ac-6212-40c0-bed8-a51742cc7cd4",
 "displayName": "Responder2",
 "email": "responder2@contoso.eu",
 "tenantId": "22815bf4-b927-43f0-8bb9-994b37c52d7d",
 "userPrincipalName": "responder2@contoso.eu"
 },
 "requestDate": "2024-07-16T14:26:45Z",
 "responseDate": "2024-07-16T14:26:58Z",
 "approverResponse": "Approve"
 }
 ]
 
}

I try to store the name of responder 1 by using following expression:

concat(body('start_and_wait_for_approval')?['responder'][0]?['displayName'])

But I get an error Message.

'The template language expression 'concat(body('start_and_wait_for_approval')?['responder'][0]?['displayName'])' cannot be evaluated because property '0' cannot be selected. Please see https://aka.ms/logicexpressions for usage details.'.

Could you please help me out how to solve this issue?

Thanks a lot in advance

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