I want to send an invitation, I get an error after submit

Assume name is custom field you have on group content type for invitation plugin ?
We don't insert any user on submit of this form, I guess some custom code is executed.
I just tested it on the fresh installation it works as it should. Please double check your side

Hi,

ok, find problem. I have installed module: remove_username → and that caused the error, because this module is removing the 'name' (username) field from the user management forms.

Your module is working well.

With regards.

Glad you find the issue! Cheers

@antiden - What did you end up doing? We're using the same combination of modules. I found that when I remove the presave hook in the remove_username module, the invitation is successfully created. I can't quite figure out what is causing the conflict between this module and the remove_username module...

Aha! There is no email value in the `$user` object.

The presave is setting a null value to the name...

/**
 * Implements hook_ENTITY_TYPE_presave().
 */
function remove_username_user_presave(UserInterface $user) {
  $user->setUsername($user->getEmail());
}

Found that after the group membership is invoked by the ginvite module and is saved into the database, an anonymous user object is passed into a user save call.

Source: `web/modules/contrib/group/src/Entity/GroupRelationship.php line 262.`

Before the anonymous user is saved, the remove_username attempts to copy the email value (in this case, NULL) to the username value, the database error occurs.

I created an issue in the remove_username module that would prevent this from happening: https://www.drupal.org/project/remove_username/issues/3396469 🐛 SQL Error when email is null Active

It's also can happen because of the next issue https://www.drupal.org/project/email_registration/issues/3461071 🐛 Save invite to group for anonymous user by email produce the error. Needs review