Create Service Operation on hSMF Call Flow
The Create service operation creates a PDU session in the hSMF for home-routed roaming scenarios. The NF Service Consumer, such as vSMF, creates a PDU session by using the HTTP POST method.
This section describes the Create service operation on hSMF call flow.

Step | Description |
---|---|
1 |
NF Service Consumer, such as vSMF, sends a POST request to create a PDU session in hSMF. |
2 |
If the PDU session creation is successful, the hSMF sends the "201 Created" to NF Service Consumer. |
3 |
If the PDU session establishment fails, the hSMF sends the HTTP status code, as listed in the HTTP Status Codes for PDU Session Creation Error table. For the 4xx or 5xx response, the message body contains a PDU Session Create Error structure, including a ProblemDetails structure with the "cause" attribute. |
Data Type |
HTTPS Status Code |
Cause |
Details |
Title |
---|---|---|---|---|
PDU Session Create Error |
403 |
SUBSCRIPTION _DENIED |
UDM_Subscription _Fetch_Failed |
Network _Failure |
PDU Session Create Error |
403 |
SNSSAI_ DENIED |
SNSSAI_Not_ Supported_By_SMF |
Network _Failure |
PDU Session Create Error |
500 |
UNSPECIFIED _NF_FAILURE |
UDM_Notification _Failed |
Network _Failure |
PDU Session Create Error |
404 |
SUBSCRIPTION _NOT_FOUND |
UDM_Subscription _Failed |
Network _Failure |
PDU Session Create Error |
504 |
NETWORK_ FAILURE |
SLA_Txn _Timeout |
Network _Failure |
PDU Session Create Error |
403 |
DNN_DENIED |
DNN_Not_Subscribed |
Network _Failure |
PDU Session Create Error |
403 |
SSC_NOT_ SUPPORTED |
SSC_Mode_Not _Supported_By_SMF |
Network _Failure |
PDU Session Create Error |
403 |
SSC_DENIED |
SSC_Mode_Denied _From_UDM |
Network _Failure |
PDU Session Create Error |
403 |
PDUTYPE_DENIED |
UDM_Rejected _PDU_Type |
Network _Failure |