How to send a multiple post request in a single batch?

I am trying to send multiple POST requests in a single batch.

With these 3 requests we are setting the status on the Notification and Order --> Work Is Done, Complete and Close Report. Like FIORI.

But in the SAP Gateway Client, only the request 1 and 3 are ok. The status for the Order is still the same.

Maybe one request is blocking the other? Do I have to create different changesets? And how do I do that?

Thank you.

Best regards, Marco

Request-URI: 
/sap/opu/odata/sap/EAM_MALFUNCTION_MANAGE/$batch


--batch
Content-Type: multipart/mixed; boundary=changeset


--changeset
Content-Type: application/http
Content-Transfer-Encoding: binary


POST C_MaintNotificationTPPerform_user_action?sap-client=320&MaintenanceNotification='100000001882'&DraftUUID=guid'00000000-0000-0000-0000-000000000000'&IsActiveEntity=true&Statusobject='OV100000675500000001'&Targetstatus='O030'&Eventconfiguration='1'ℜasoncodegroup=''ℜasoncode=''&Isadditionalreason=false HTTP/1.1
Content-Type: application/json
sap-contextid-accept: header
Accept: application/json
Accept-Language: en
DataServiceVersion: 2.0
MaxDataServiceVersion: 2.0
Content-Length: 626


--changeset
Content-Type: application/http
Content-Transfer-Encoding: binary


POST C_MaintNotificationTPPerform_user_action?sap-client=320&MaintenanceNotification='100000001882'&DraftUUID=guid'00000000-0000-0000-0000-000000000000'&IsActiveEntity=true&Statusobject='OR000004001747'&Targetstatus='0050'&Eventconfiguration='1'ℜasoncodegroup=''ℜasoncode=''&Isadditionalreason=false HTTP/1.1
Content-Type: application/json
sap-contextid-accept: header
Accept: application/json
Accept-Language: en
DataServiceVersion: 2.0
MaxDataServiceVersion: 2.0
Content-Length: 800


--changeset
Content-Type: application/http
Content-Transfer-Encoding: binary


POST C_MaintNotificationTPPerform_user_action?sap-client=320&MaintenanceNotification='100000001882'&DraftUUID=guid'00000000-0000-0000-0000-000000000000'&IsActiveEntity=true&Statusobject='QM100000001882'&Targetstatus='0051'&Eventconfiguration='1'ℜasoncodegroup=''ℜasoncode=''&Isadditionalreason=false HTTP/1.1
Content-Type: application/json
sap-contextid-accept: header
Accept: application/json
Accept-Language: en
DataServiceVersion: 2.0
MaxDataServiceVersion: 2.0
Content-Length: 755


--changeset--


--batch--