调用MSGraph Beta API更新访问包审批遇403：仅支持用户令牌

我正尝试通过MS Graph Beta API（Java 0.51.0-SNAPSHOT）调用访问包分配审批更新接口，调用失败并返回如下错误：

2022-08-26 22:32:44.239 ERROR 10208 --- [nio-9999-exec-4] global                                   : CoreHttpProvider[sendRequestInternal] - 408Graph service exception
2022-08-26 22:32:44.239 ERROR 10208 --- [nio-9999-exec-4] global                                   : Throwable detail: com.microsoft.graph.http.GraphServiceException: Error code: 
Error message: Only user tokens are supported

PATCH https://graph.microsoft.com/beta/identityGovernance/entitlementManagement/accessPackageAssignmentApprovals/aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/steps/bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb
SdkVersion : graph-java/v0.51.0
[...]

403 : Forbidden
[...]

[Some information was truncated for brevity, enable debug logging for more details]

根据错误信息，是否该接口确实不支持应用令牌？但奇怪的是，我可以正常调用访问包分配审批查询接口，且已为应用用户委派了EntitlementManagement.ReadWrite.All权限。

内容的提问来源于stack exchange，提问作者myroch