I would like to manage both companies from one adwords account, but I need both set of ads to display, as they sell the same line of product, but from different manufactuers.
Does Google have a flag to allow double serving, when one company buys another, or do I need to keep both accounts separate.
By the way, these are total separate companies 'legal identities', so I am not violating the Google multiple account rule in the TOS.
However, I'm sure this isn't an uncommon situation and perhaps Adwords have another suggestion for you. But I've not heard that this is possible from the same account. I would have expected that you may be able to open another account for the other company.
Get with a rep they will build you a adwords campaign and have the ads rotaing in an out only one will show 50% of the time the other will show the other 50% of the time. This works really well. If you keep it from them they will find out unless you keep the payment stuff different etc and etc... best bet get the rep to help this has worked really well for us...
The last thing I want to do is divide my adwords income in half for each company, as this defeats the purpose of buying out your competition (at least for PPC)
This is like saying if I am a 50% owner of Ford and a 50% owner of GM, I must rotate my ads between Ford and GM, and not have GM ads and Ford ads displaying at the same time.