I am creating user via API. Example is taken from https://www.zabbix.com/documentation/2.0/manual/appendix/api/user/create

User used to comminicating with Zabbix API is a "Zabbix Super Admin".
usrgrpid = 18 and mediatypeid = 1 both exists.

I am sending example json:

{
"jsonrpc":"2.0",
"method":"user.create",
"params":{
"alias":"John13",
"name":"john",
"surname":"doe",
"passwd":"Doe123",
"autologout":"300",
"type":"1",
"usrgrps":

{ "usrgrpid":"18" }

,
"user_medias":

{ "mediatypeid":"1", "sendto":"[email protected]", "active":"0", "severity":"15", "period":"1-7,00:00-24:00" }

},
"auth":"7ba6d6f241cf01ce0446febb85c88386",
"id":2
}

Response is:

{
"jsonrpc":"2.0",
"error":

{ "code":-32602, "message":"Invalid params.", "data":"DBerror" }

,
"id":2
}

The problem seems to be section "user_medias" - without it user is created without error.