Built something you're proud of? Tell the story. A quick G2 review of App Engine or Build Agent helps other developers see what's possible on ServiceNow. Share your experience.

Unable to remove Unique constraint from custom field on OOTB table (cmn_location)

maliksneha9
Mega Sage

‎01-15-2026 10:06 AM

Hi everyone,

I have a custom field on the OOTB table cmn_location that was earlier set to Unique = true (FYI, this is currently the only unique field on the Location table).

Now I need to change the field to Unique = false, but I am unable to do so. The unique constraint/index does not allow the change.

What is the supported solution or best practice to remove this uniqueness?

Thanks in advance!

0 Helpfuls
  • 332 Views
1 REPLY 1

PoonkodiS
Giga Sage

‎01-15-2026 02:51 PM

Hi @maliksneha9 ,

There is no way to uncheck the checkbox of unique .

https://www.servicenow.com/community/service-management-forum/unique-dictionary-field-question/m-p/4...

 

Regards,

Poonkodi

 

0 Helpfuls