Call extension only showing with some keywords/ads?

[Mozzin]

I've enabled Call Extensions with Call Forwarding on my Adwords Campaign (found out Location Extension must be enabled, so enabled that, but left out phone number in location settings).

I thought these extensions should work on a campaign level.

However, I can only see the google voice call forwarding extension on some of my keywords/ads.

What's up?

[Mozzin]

found the answer, in case anyone else is wondering

"Keep in mind that your ad group will have to receive a minimum number of clicks to be able to show call extensions. In case your traffic is unable to meet that minimum requirement the ad will display w/o the call extensions."

-source:

https://www.en.adwords-community.com/t5/Manage-ads/Call-Extensions-Not-Appearing/m-p/44248/highlight/true#M4032