ORO CRM unable to create unique keys

orocrm 5.0, ubuntu serve arm64, installed with composer & symfony

I'm trying to create a unique key in Account entity with a custom field "domain" but this error in logs appear :

[2022-02-25T17:31:17.246271+00:00] request.INFO: Matched route "oro_entityextend_entity_unique_key". {"route":"oro_entityextend_entity_unique_key","route_parameters":{"_route":"oro_entityextend_entity_unique_key","id":"79","_controller":"Oro\\Bundle\\EntityExtendBundle\\Controller\\ConfigEntityGridController::uniqueAction"},"request_uri":"https://orocrm.webmore.fr:8000/entity/extend/entity/unique-key/79","method":"POST"} []
[2022-02-25T17:31:17.375084+00:00] request.CRITICAL: Uncaught PHP Exception Oro\Bundle\EntityConfigBundle\Exception\EntityConfigValidationException: "Invalid entity config for "Oro\Bundle\AccountBundle\Entity\Account": Unrecognized option "unique_key" under "entity". Available options are "contact_information", "description", "entity_alias", "entity_plural_alias", "grid_all_view_label", "icon", "label", "plural_label"." at /home/ubuntu/crm/vendor/oro/platform/src/Oro/Bundle/EntityConfigBundle/EntityConfig/ConfigurationHandler.php line 128 {"exception":"[object] (Oro\\Bundle\\EntityConfigBundle\\Exception\\EntityConfigValidationException(code: 0): Invalid entity config for \"Oro\\Bundle\\AccountBundle\\Entity\\Account\": Unrecognized option \"unique_key\" under \"entity\". Available options are \"contact_information\", \"description\", \"entity_alias\", \"entity_plural_alias\", \"grid_all_view_label\", \"icon\", \"label\", \"plural_label\". at /home/ubuntu/crm/vendor/oro/platform/src/Oro/Bundle/EntityConfigBundle/EntityConfig/ConfigurationHandler.php:128)"} []

Someone can explain the problem here ?

Thanks.

source https://stackoverflow.com/questions/71269674/oro-crm-unable-to-create-unique-keys