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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
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:
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
Thank you very much for the detailed and precise answer.
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