Question
There is some additional domain data:
It was found out that one of the values is not correct. How to update it or add new parameter?
Answer
It can be done with API DomainExtDataAdd_API. Keep in mind that ParameterID for Password is usually Passwd, so the request to update Password looks like:
...
<name>Params</name>
<value>
<array>
<data>
<value>DomainID</value>
<value>Passwd</value>
<value>required_password</value>
</data>
...
where DomainID and required_password are to be substituted with the require values.