Add field in account form

[amoric69]

Hello,
I'm looking to make changes in My Account / Account - This is the form edition.
Is it possible to add a required field SIREN?
Is it mandatory to go through a SQL query?

thank you

[frosticek]

@amoric69
If you want to add new unique field, you need to:

• create column in database
• modify core to work with this field (save, update, load)
• modify theme to have this field
• do first 2 points every time you upgrade

Because of it it is better to modify existing field you do not need (i.e. city area) and work with it