Hello friends, can any one tell me that how many campaigns, ad groups and ads we can create within one Google adwords account.
http://adwords.google.com/support/aw/bin/answer.py?hl=en&answer=40907 They don't tell you this, but these limits are all in theory extensible an an account-by-account basis if you contact a Google rep. Of course they advise you just use multiple accounts and link them through MCC. Hope that answers your question.
If you need more you can write to adwords. I got mine increased to 100 campaigns and 10,000 adgroups.
A standard account has the following limits: 25 campaigns 2000 groups per campaign 2000 keywords (all types, including negatives) per group 50 ads, all types (text, image) per group hard limit of 50,000 keywords for the entire account. These are more than enough for most, provided you properly plan and organize your account. Yes, you can ask to extend these limits but if you don't organize properly, they'll tell you so and refuse. Of more than 100 clients in over five years, I've had only one that needed these limits extended because he sells 150,000 products on his site. Even so, care and planning was required in the account's organization. Even 10,000 groups per campaign seem small when you have 25,000 products in one category. Note that on all of these limits, it is for the active elements. You can have more than 25 campaigns for example but only 25 can be active at any time. Same for the groups, keywords and ads (not that you should have 50 active text ads but you could have different image ads in different sizes).