# Unable to modify user details

Last updated: July 24, 2026

## Problem

You are unable to change the user details such as E-mail either in bulk and/or for an individual user in **MDM Cloud**.

## Cause

The following causes may prevent you from modifying the user details:

- [User name already exists](#user_exists)
- [Domain already modified](#domain_modified)
- [Account not yet confirmed](#account_not_confirmed)
- [E-mail specified is invalid](#invalid_email)
- [Account not yet modified](#account_not_modified)
- [E-mail address mismatch](#email_mismatch)
- [No account associated](#no_account)
- [E-mail wrongly associated](#email_wrong_association)

## Resolution

**User name already exists**

Ensure the specified user name is not already associated to another account in the org.

**Domain already modified**

Ensure the AD-based domain has not been modified before. If modified previously, MDM doesn't permit another domain change.

**Account not yet confirmed**

Ensure the verification process on creating an account in Zoho Accounts has been completed. The verification process usually involves verifying the e-mail specified during account creation.

**E-mail specified is invalid**

Ensure the e-mail address specified adheres to the format **user@domain**.

**Account not yet modified**

Ensure the new e-mail address specified, has also been included as the primary e-mail address in Zoho Accounts. [Modify the e-mail address as explained here](https://www.manageengine.com/mobile-device-management/how-to/mdm-cloud-modifying-user-email.html).

**E-mail address mismatch**

Ensure the e-mail specified and the e-mail address in Zoho accounts is the same.

**No account associated**

Ensure the e-mail address has a valid Zoho account.

**E-mail wrongly associated**

Ensure no new account has been created for the modified e-mail address as this prevents proper mapping from the existing e-mail address to the modified address. Instead the exisiting e-mail address is to be modified in the **same Zoho account**, which was previously created.