As of course, you've read (probably a bunch of times), there are a variety of options for setting of uShop's affiliate cookie/tracking option, as described at:
For now, let's just go with what you have working at:
That is, from your description, it sounds like that URL is properly setting the cookie and the cookie is properly being registered in the ushop-affiliates.log file, correct?
And so the only problem is that you are not seeing the affiliate information when doing an affiliate report on that affiliate from the uShop control panel, correct?
Going to that URL:
1) I definitely see the affiliate cooking being set.
2) And upon starting the checkout process, I definitely see that the hidden affiliate "id" is properly being set to "exampleid" (by viewing the source of the first checkout page):
< INPUT TYPE="hidden" NAME="id" VALUE="exampleid" >
3) And again based on your description, it sounds like the ushop-affiliates.log file is being updated.
I couldn't verify this myself at:
... because I don't know the password that you set for the "exampleid" affiliate.
But I can say that this indicates to me that everything is most likely setup properly, however, you may not have actually created an affiliate with the "exampleid".
That is, did you remember to actually Add/Create the "exampleid" affiliate via the uShop Control Panel? If you don't actually "Add" the affiliate via the uShop Control Panel, that affiliate won't be listed in any affiliate reports. So check that.
(By the way, on an entirely different subject, when testing out your website, I noticed on your page at:
That you accidentally have the "script_url" parameter of your uShopOrderButton applet set to:
Note the "https://picus" instead of "https://medica". You probably want to correct that.)