Unable to see goal conversions and which keyword is convering in campaigns

Hello I would like to see from which keywords are coming my conversions from ppc campaign I am creating

First I created a goal in piwik - exact match with a destination page https://mywebsite/thanks.html

Then I created the URL in the piwik URL builder and place the corresponding parameters

After a test I could see which keywords received clicks but not the conversions. Also goal says 0 conversions

I have the piwik tracking code installed on all necessary pages including the thank you page after the sale. Am I missing something?

If anyone can help it will be greatly appreciated

Thank you in advance