I am producing some RSS feeds and in the Event History, there is frequently a message,
Dropping Item, <item name here>, - Unknown GuID

I specify a guid with isPermaLink="false"  for each of my items. In the RSS specification, the guid is just a string. 
An example from my feed is <guid isPermaLink="false">ScanEagle.SPOI.13.snap-1182191882720</guid>

I tried turning this into a bogus url, but I get the same error:
<guid isPermaLink="false">http://nohost#ScanEagle.SPOI.13.snap-1182191882720</guid>

Thanks for your help.
Mike

Hi Mike - I will get the dev team to check this out for you - stay tuned

This issue actually arises due to the duplicate checking code. The "Unknown GuID" message arises when identical content is found, but it has a different guid. The item is therefore assumed a dupe, and is dropped.

A good way to fix the problem, if the items really do contain unique content is to add some kind of differentiating text in the item 

Or if it is the same content representing the same thing, then use the same GUID - then Particls will recognize it as an update to the previous item

Hmm.  While it suggests my code is not doing what it's supposed to be doing (and what I thought it was doing), this is good news because it should be straightforward to track down. 

Thanks for checking your code to answer my question.
Mike

No problems Mike - anytime

I was troubleshooting my code and was convinced that the content really is different for each guid.  Also, I get this error even when the guid is seen for the first time and is absolutely unique (I used the system time in the guid).  Here's an example of my guid tag.

<guid isPermaLink="false">1182638404216ScanEagle.SPOI.13.snap/1182638227100</guid>

Is there any other possible reason this error could be occurring?

I tried not writing item/guid to the rss file and the Unknown GUID message is still reported in the log.

Mike

Mike, the problem is actually in the remaining content of the post not being different. That message is acknowledging that the GuID is different, but the Title/Description pair is not.