I want to consider that Org ID and email attribute should be unique

[undone elbow]

For example

Org ID | Email
123 | [email protected]
123 | [email protected]

Now this throws an error, 123 | [email protected] is duplicate. But if this is the case

Org ID | Email
123 | [email protected]
021 | [email protected]

OR
Org ID | Email
123 | [email protected]
123 | [email protected]

This is still a unique data since the ORg ID or the Email are not the same to other that

[grizzled grotto]

Is this your custom collection?

[undone elbow]

yes

[grizzled grotto]

If you want org Id to be unique, create a unique index on org Id. Same with email

[undone elbow]

so what if I have moshontong email on two document but the org ids is not the same does it still throws an error?

[crisp hawk]

Since the org ids are different the unique constraint will not apply. Both documents will be regarded as distinct.

[grizzled grotto]

This only applies if you create 1 unique index with both attributes.

If you have 1 index on email, no 2 document can have the same email