Currently the Customfield doesn't support it, but you can use the following JQL workaround:
You can also use this as a quick filter.
It sounds like you found a great way to search empty JIRA Portfolio Team fields. From the description it appears you were just providing knowledge. If that's the case thank you!
If I'm missing the question let me know and we'll go from there.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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