web
You’re offline. This is a read only version of the page.
close
Skip to main content

Notifications

Announcements

No record found.

Community site session details

Community site session details

Session Id :
Microsoft Dynamics 365 | Integration, Dataverse...
Answered

Add unique field?

(0) ShareShare
ReportReport
Posted on by 487

Greetings,

Is there a way to add a unique (text) field on an existing talbe/entity in dynamics 365? In my case, the contact entity.

Regards,

HD

I have the same question (0)
  • Verified answer
    Wahaj Rashid Profile Picture
    11,321 on at

    Hi,

    Thank you for your query.

    You can add an alternate key, which adds an index and acts as a unique key

    https://docs.microsoft.com/en-us/dynamics365/customerengagement/on-premises/developer/define-alternate-keys-entity#:~:text=All%20Dynamics%20365%20Customer%20Engagement,unique%20identifiers%20defined%20as%20GUIDs.&text=This%20alternate%20key%20can%20be,unique%20identity%20for%20your%20records.

    Here are steps:

    • Go to Advanced Settings -> Customization -> Customize this System.
    • Expand Entities -> Contact -> Fields.
    • Create a new field (if you do not have already).
    • Now, click on Keys under Contact entity and create a key based on the column created (or use existing column).

    pastedimage1611828882869v1.png

    • Publish.

    pastedimage1611829274183v3.png

    Please note, you can add up to 5 Keys at max per entity.

    Another approach is to set Duplicate Detection rules to avoid duplicates (based on a a field or a combination of fields), but it won't force uniqueness:

    https://docs.microsoft.com/en-us/power-platform/admin/set-up-duplicate-detection-rules-keep-data-clean

  • Suggested answer
    Hedi Daneels Profile Picture
    487 on at

    Thank you very much for the detailed and precise answer.

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Neeraj Kumar – Community Spotlight

We are honored to recognize Neeraj Kumar as our Community Spotlight honoree for…

Leaderboard > Microsoft Dynamics 365 | Integration, Dataverse, and general topics

#1
Siv Sagar Profile Picture

Siv Sagar 93 Super User 2025 Season 2

#2
#ManoVerse Profile Picture

#ManoVerse 80

#3
Martin Dráb Profile Picture

Martin Dráb 64 Most Valuable Professional

Last 30 days Overall leaderboard

Product updates

Dynamics 365 release plans