My Save Config Button [Stores>Configuration] in Magento 2.3.3 Doesn't Work

Question

I can't make any changes because after making the changes the save config button just doesn't work.

Please help. Thank you

Answer 1

Open all the fieldsets in the catalog tab. Most probably there is a field in one of them that is not valid and there is a js error message that prevents the form from submitting. If you open all of them you should see the one with problems.

If you got it this type error in inspect.

You need to deploy the area of backend.

php bin/magento setup:static-content:deploy -f --area adminthml

Answer 2

Case 1:- First Require remove the var/page_cache , var/session andvar/view_preprocessed after run the :-

php bin/magento s:up
php bin/magento s:s:d -f
php bin/magento c:c
php bin/magento c:f

Case 2:- There is two possible problem

1) page coming from cache ( first check is that configuration save into core_config_data)

2) php post size issue

add below thing into a .htaccess file

php_value upload_max_filesize 10M
php_value max_input_nesting_level 128
php_value max_input_vars 7000

any query let me know.