I can't find Gurt's Greataxe to add to a PC even though I have access to SKT.

The PC is not in the campaign, but I do have access to SKT through campaign sharing.

I checked in the PC that is in the campaign and it doesn't show up for that PC either.

I also can't add the item Drown.  I have access to PoA also.  

I can see the items on the website but not in the character equipment management.

Characters have to be in the content sharing campaign with the person sharing the book in order to have access to that content.

Once you have done that, make sure you are not using filters like "common" or "proficient" (if you are not proficient).

If you are still having issues, list the URL of the character sheet for a mod to try and help.

OK,  Taking a closer look, I have a character in a Storm Kings Thunder campaign but there is no content sharing therefore no access to the weapon.

A character in a campaign that does have content sharing enable does have access to Gurt's Greataxe

So I see how that works, my mistake.

Thanks for the help.