Hi,
Currently the AdWords API .NET client library doesn't allow you to
change the headers of the AdWordsUser after it's been created. You
can however change the header values of a service, using code like:
serviceName.RequestHeader.clientEmail = newvalue;
Best,
- Eric Koleda, AdWords API Team
Answering part of it myself:
It seems that re-using the AdWordsUser-object is essential when making
many subsequential requests to the API, since
creating a new user would also create a new token each time - which
would count as a separate login each time, and lead to the
account being locked.
No
