While querying attachments using Graph API we are getting wrong size value. It doesn't match with actual attachment size in present in the "contentBytes" field.
Refer to the API https://learn.microsoft.com/en-us/graph/api/message-list-attachments?view=graph-rest-1.0&tabs=http
{ "value": [ { "@odata.type": "microsoft.graph.fileAttachment", "contentType": "contentType-value", "contentLocation": "contentLocation-value", "contentBytes": "contentBytes-value", "contentId": "null", "lastModifiedDateTime": "datetime-value", "id": "id-value", "isInline": false, "name": "name-value", "size": 99 } ] }Therefore, we want you to provide a graph API which can copy the attachment to users’ Onedrive as this is what our service is doing to provide user ability of editing the file.