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While creating the configuration products in Magento2.2.2 I am facing the

Invalid Form Key. Please refresh the page

error. I have google regarding this error and I have found the solution to

Increase the value of max_input_vars PHP configurable variable

I have increased this value but the problem is not solved.

While creating the configurable product almost 40000 associated product is generated and now I have set the max_input_vars value to 3075000 but the problem is not solved.

Anyone, please help me to fix this issue.

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  • Then clear browser cache. Especially clear or delete cookies. Commented Jul 11, 2019 at 8:41
  • Try in private window Commented Jul 11, 2019 at 8:42
  • I have already tried this cache clear and private windows. Even I have tried from another computer but problem not solved. Commented Jul 11, 2019 at 9:02
  • try restarting the apache server and then check again Commented Jul 11, 2019 at 9:05
  • @surbhiagr I have tried with restart the apache & mysql also. But same problem. Commented Jul 11, 2019 at 9:41

3 Answers 3

Reset to default
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If Linux (Fedora) go to

sudo vi /etc/php.ini

Change memory_limit = 128M to 2040M

check session.gc_maxlifetime if its commented like

";session.gc_maxlifetime"

then change to

session.gc_maxlifetime = 1440

after that restart your apache server

sudo service httpd restart
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Please check with below possibilities :

1 check with php info max_input_vars are updated or not. may be if you are using multiple php versions, so you assign value to another php.ini also please verify below values :

2 check with your database table core_config_data find path=web/cookie/cookie_domain, if you find row than remove it.

I hope its work for you.

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  • yes all the php configuration updated correctly. check the setting here i.imgur.com/6UB1vzE.png. I have already tried this cookie setting before its empty (no records in Db) I have added a record and check again but its not working. then I have reverted by deleting the records Commented Jul 16, 2019 at 9:53
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Issue has been resolved by changing the PHP settings.

max_input_vars = 100000 max_input_nesting_level = 800 max_input_time = 18000

Reference :Php max_input_vars prevents attribute options saving in M2

Then run command

if Linux (Debian/Ubuntu):

sudo service apache2 restart sudo /etc/init.d/apache2 restart
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  • max_input_vars & max_input_time I have already set this to maximum. But I don't think we have to increase the max_input_nesting_level to 800. Now it is 64. Can you please tell me why should I increase this as I think 64 level is sufficient. Commented Jul 18, 2019 at 6:19
  • @Narayan you can contact your server team they are given you perfect number Commented Jul 18, 2019 at 6:26

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