How To Fix AQ121 - Nom & n´est pas admis par le système

SAP Error Message - Details

• Message type: E = Error

• Message class: AQ - Message texts for SAP Query

• Message number: 121

• Message text: Nom & n´est pas admis par le système

Quelle est la cause de ce problème?

You tried to give a query object (query, InfoSet or user group) a name
that does not comply with the naming conventions. This name either
contains an invalid name prefix, is an invalid name or contains invalid
characters.
Since the introduction of namespaces, objects in the global area can be
assigned to a namespace using a prefix with the form '/prefix/'. This
is optional. If you use a prefix, it may not be longer than 10
characters. The following rules apply to the names of query objects in
the global area:
Names of InfoSet have the form '/prefix/infoset'.
Names of user groups have the form '/prefix/user_group'.
Names of queries have the form 'query'. They inherit the prefix of
their user group and therefore may not have a prefix of their own.
For future query expansions all query object names are reserved that
begin with SY and contain more than four characters. Objects with these
kinds of names cannot be created using the maintenance transaction.
The names of query objects may not only consist of letters, digits and
the special characters - and _ (hyphen and underline).
The following cases lead to illegal names:
You use a prefix for an object in the standard area.
You use the prefix // or a prefix /.../ with more than 10 characters.
You assign a prefix to the name of a query.
You use a prefix that belongs to another customer.
There are no other characters after the prefix.
The name starts with SY and contains more than 4 characters.
The name contains an invalid special character.

Réponse du système

Le système émet un message d'erreur et ne vous permettra pas de poursuivre cette transaction tant que l'erreur n'est pas résolue.

Comment corriger cette erreur?

Extrait du message d'erreur du système SAP. Copyright SAP SE.