How can I remove or hide the suffix from quotes autonumbering?
It's enough to suffix does't appear in quotes template.
Can anybody help me please?
The Quote Autonumbering is a standard feature of Dynamics CRM and can't be changed to remove a part.
You can always create another field to use as Quote Number and use an alternative Autonumber solution (like this one)
If I remember correctly the quotenumber field of the quote entity can be set to a custom value when the record is created so you can try first to set the autonumber solution to fill the quotenumber field, if doesn't work you need to create a new field.