How similar do pages need to be to utilize the canonical tag

[cbarron]

One of my pages is a help and questions page about completing a conversions and the other is the actual campaign landing page. They are both ranking for the same term. While the subject of both pages is similar the content is not. Is the rel canonical tag appropriate here?

[Martijn_Scheijbeler]

Hi Conor,

The way you described it the pages are different and so I wouldn't add a canonical tag to it myself. For example Moz wrote a couple of posts on the same topic but they're still different.

[cbarron]

Thanks Martijn. The more I look at it the more I think that it not a good fit in this situation.