function readOnly(count){ }
Sign Up ›
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
Learn More

Browse by Topic
ShowAll Questionssorted byDate Posted
+ Start a Discussion
Julie CurryJulie Curry 

deployment error: duplicate value found: <unknown> duplicates value on record with id: <unknown>

I have a change set I'm trying to validate and I get the following error and I don't understand what it means.  There is one custom lookup field in the change set. 

duplicate value found: <unknown> duplicates value on record with id: <unknown>


Thanks in advance for your help!
Marcelo CostaMarcelo Costa
Hi...
I was going to write an answer down, but I remembered I saw an AWESOME explanation on this by this Stack overflow post...
give it a try, and good luck!
Link on Stack overflow. (https://salesforce.stackexchange.com/questions/79799/how-to-debug-the-mysterious-duplicate-value-found-unknown-duplicates-value-o)
 
Arturo OrdoquiArturo Ordoqui
I had a similar issue and the above documents referenced field tracking being enabled, but in my case it wasn't enabled and still failed just by having a lookup filter on the field.