Skip to Main Content
IBM Power Ideas Portal

This portal is to open public enhancement requests against IBM Power Systems products, including IBM i. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (

Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:

Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,

Post your ideas
  1. Post an idea.

  2. Get feedback from the IBM team and other customers to refine your idea.

  3. Follow the idea through the IBM Ideas process.

Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal ( - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal ( - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM. - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

Status Not under consideration
Workspace IBM i
Categories Languages - RPG
Created by Guest
Created on Mar 29, 2022

Provide a "not-in" operator

Now that we have a conditional “in” operator, please provide a “not-in” operator, that can be used wherever “in” can, eg, with %lists, %ranges, arrays, etc.

Currently, we need to code the awkward

if not (Value in %list(x:y:...));

with not-in, this would become

if Value not-in %list(x:y:...);

which is more in line with other IBM i languages.

Idea priority Low
  • Guest
    Jun 27, 2022

    What does work is:

    IF NOT (XYZ IN %LIST('A':'B':'C'))....

    But this is indeed not so good to read.

  • Guest
    Jun 27, 2022
    Thank you for taking the time to submit your request. After careful consideration, we know that we cannot deliver your requested enhancement soon, so it is being declined. However, your request does align with the future strategy of our product and we believe it may have future value, so we will add it to an internal list for us to keep in mind for the future.

    Continue to use the following syntax as a work-around:
    if not (Value in %list(x:y:...))

    - IBM Power Systems Development
  • Guest
    Jun 16, 2022

    "Not necessary, already functional as follows:

    if XYZ NOT (IN %list('A':'B':'C'))...."

    I tried this. It didn't work.

  • Guest
    May 27, 2022

    Not necessary, already functional as follows:

    if XYZ NOT (IN %list('A':'B':'C'))....

  • Guest
    May 1, 2022
    IBM has received the requirement and is evaluating whether this request is feasible. IBM will provide a response after evaluation is complete.
  • Guest
    Apr 27, 2022

    I second this suggestion. It really increased readability.