Adobe I/O : Adobe Target Integration - Get Offer by OfferId

Hi Team,

I have done the Adobe Target Integration and when I try to fetch the offer through offer Id , I get this error:

Command : https://mc.adobe.io/accenture-partner/target/offers/content/708106

Error :

{
"httpStatus": 403,
"requestId": "dxoXXRS554QVear9iwfW9bpdq7GmKgt3",
"requestTime": "2020-07-16T05:54:03.773Z",
"errors": [
{
"errorCode": "Forbidden.Resource",
"message": "Access denied. You do not have sufficient privileges in accessible workspaces to perform this operation on OFFER with id 708106."
}
]
}

I have the approver access in the workspace. Any insights in this regard will be very helpful.