Here's an example:

python code:

field_name = fields.field_type(string="String for field", store=True)

thank you @Jainesh Shah, but this is not what i am asking for. i am not allowed to add/use a custom module, the only way i have to use to modify all customizations is Setting -> Technical (as already mentioned), i am setting it as Stored = True

hope its clear now.

regards

if in screenshot the error is not readable then check here i have copy and pasting so it can be read by anyone.

Validation Error: Unable to order by name: fields used for ordering must be present on the model and stored.

regards