@samrathal Per the docs you need to provide the ID:   Request consumes: */*   Name Location Type Description id path string The connection id. flowfile-uuid path string The flowfile uuid. clusterNodeId query string The id of the node where the content exists if clustered. You should be getting that ID from the previous get call (Gets a FlowFile from a Connection) within the response is an object:  FlowFileEntity   Inside is the "clusterNodeId" corresponding to which node that flowfile exists on.   { "flowFile": { "uri": "value", "uuid": "value", "filename": "value", "position": 0, "size": 0, "queuedDuration": 0, "lineageDuration": 0, "penaltyExpiresIn": 0, "clusterNodeId": "value", "clusterNodeAddress": "value", "attributes": { "name": "value" }, "contentClaimSection": "value", "contentClaimContainer": "value", "contentClaimIdentifier": "value", "contentClaimOffset": 0, "contentClaimFileSize": "value", "contentClaimFileSizeBytes": 0, "penalized": true } }  Those details are exposed in the nifi api doc, just be sure to click into the entity. ... View more

@wallacei  There are roles attached to the main control plane and roles attached to specific environment.  Work with you environmentAdmin to make sure you have all the correct roles at the control plane level and then deeper at the environment level if necessary. Below is the EnvironmentAdmin   [ { "crn": "crn:altus:iam:us-west-1:altus:policy:EnvironmentAdminPolicy", "policyStatements": [ { "rights": [ "environments/getFreeipaOperationStatus", "environments/repairFreeIPA", "environments/upgradeFreeIPA", "environments/createDatahub", "datahub/read", "datahub/write", "datalake/read", "datalake/write", "environments/read", "environments/write" ], "resources": [ "*" ] } ] } ]  You may need more specific roles to access additional services around the environment. ... View more