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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 42%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDR%3C/text%3E%3C/svg%3E)
Used https://microsoftgraph.chinacloudapi.cn/v1.0/users/{id|name}/mailFolders/{folder_id}/messages/delta
got response as
"code": "ErrorInvalidIdMalformed",
"message": "Id is malformed."
tried encoding Ids , but same error occurs for Azure China Cloud Accounts. Works fine for other cloud accounts. According to MS documentation on national cloud deployments Delta Query is mentioned as supported. but it is not working for messages.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 11%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECM%3C/text%3E%3C/svg%3E)
Hi @Damian Ramesh ,
Looks like your issue is related to MS graph Delta Api. Please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client and know little about MS graph Delta Api. In this regard, we will remove "office-outlook-itpro" tag.
Thanks for your understanding and hope your question will be resolved soon.
If you're still facing the issue, then i would suggest you to open a support ticket regarding this (along with the requestid, timestamp of the above API call as well).