fail to create host when hostGroupId greater than 9

[java_noob]

I was trying to create host with java api, but I found that when the groupId in params greater than 9 , an error was responsed with infomation :
"{"code":-32500,"data":"No permissions to referred object or it does not exist!","message":"Application...

[ralph.lawrence]

Hi,

Can we set permission by API?
If I am the superadmin, can I set the permission of any hostgroup and give read,write access to any "Zabbix User" by mean of API?

Thank You