Hi Mark,
The most common cause of this error is that you are making back-to-
back requests with operations against the same ad group. The AdWords
system is making some final updates to the ad group after the first
call right as you make the second call, resulting in a collision.
Please ensure tha
Hello,
I must be confused with the API. Some help would be much appreciated.
In PHP we create an array of operations then use
$adGroupCriterionService->mutate($operations) but sometimes receive an
error: CONCURRENT_MODIFICATION
If an array of operations are sent does the API ensure that they are
