This is a non tech small business marketing question but hopefully you guys don't mind. If you do I guess it will be closed down.
My wife has started a small cake business in London: Art of Sumptuous Cakes
We have very small advertising budget but virtually all our business comes from Google adwords. Of the bidding options available what is the best choice for a business like ours?
[A] Focus on clicks - manual bidding. Have tried this with auto adjustment for when a keyword was not first page but frequently hit the daily budget quickly
[B] Focus on clicks - automatic bidding - started with this, high number of clicks but not many conversions
[C] Focus on conversions - have just started using this method as we are starting to collect conversion data. Having tried direct online purchase, it was not successful. People ordering cakes seem want to have a conversation via email / phone, so defined our conversion as form submit on the Contact Us page. Bit worried this option does not seem to provide as many clicks and can use up the daily budget quite quickly. Advice on whether the Max CPA or Target CPA is the better option
Have started to gather data on all three and is that just the best option? There doesn't appear to be a way to A/B test bidding options so run each for a month at a time with the same keywords and AD's and just measure conversions?