error 403

-- HikaShop version -- : 5.0.4
-- Joomla version -- : 5.1.0
-- PHP version -- : 8.1

Hi
I'm trying to customize email templates. I get error 403 when click save button. how can I fix it ?

Hi,

This means that you have a security system which blocks the saving.
You have to see if you can exclude the email saving area of the backend from it.

Or you'll have to customize the emails by changing the files in the media/com_hikashop/mail/ folder via FTP.
In there, you can make copies of the files, adding .modified at the end to create overrides.
So the file order_notification.html.php would be copied to order_notification.html.modified.php
That way, you won't loose your modifications in the override files.

can you explain what you mean of "security system" ?
is this related to my hosting ?

my site contains only this components :
1- HikaShop
2- 4SEO
3- RSForm

with your assistance now i can edit my emails via FTP and that is much better cuase I can use my IDE for coding.

now I have another problem ...
the css styles i used in the email file are not implemented by Gmail, since the original emails css was working

Hi,

Not all CSS code can be used in emails.
Some email clients block some CSS. Gmail blocks quite a lot of CSS.
mailchimp.com/help/limitations-of-html-email/