Hi Peter,
thanks for the response - that sadly didn't help me at all.
As you might know, there is no "null" in Python but a "None". So I've tried all kind of stuff:
ad_group.target_cpa_micros.value = None
(Error: None has type NoneType, but expected one of: int, long)
ad_group.target_cpa_micros.value = 0
(no error, no change)
ad_group.target_cpa_micros.value = int()
(no error, no change)
ad_group.target_cpa_micros.value = ""
(Error: '' has type str, but expected one of: int, long)
And hell, even
ad_group.target_cpa_micros.value = "null"
(Error: 'null' has type str, but expected one of: int, long)
Trial an error only get you so far - would it be much to ask for one line of code (to work with the Python library) from your side?