How to uninstall POS Standard

I. Disable Magestore modules

Take a full backup of your site
Turn on maintenance mode
```
php bin/magento maintenance:enable
```

Switch to developer mode

php bin/magento deploy:mode:set developer

Disable all Magestore modules

php bin/magento module:status | grep -i 'Magestore' | xargs php bin/magento module:disable

II. Remove data

Login to your database
Turn off foreign key checks
```
SET FOREIGN_KEY_CHECKS=0;
```

Drop tables created by Magestore modules
You can ignore tables that do not exist

DROP TABLE os_warehouse;
DROP TABLE webpos_cash_denomination;
DROP TABLE webpos_cash_transaction;
DROP TABLE webpos_category_deleted;
DROP TABLE webpos_customer_deleted;
DROP TABLE webpos_location;
DROP TABLE webpos_order_deleted;
DROP TABLE webpos_order_payment;
DROP TABLE webpos_pos;
DROP TABLE webpos_order;
DROP TABLE webpos_action_log;
DROP TABLE webpos_order_payment_error;
DROP TABLE webpos_product_deleted;
DROP TABLE webpos_search_product;
DROP TABLE webpos_session;
DROP TABLE webpos_shift;
DROP TABLE webpos_staff;
DROP TABLE webpos_authorization_role;
DROP TABLE webpos_authorization_rule;

Turn on foreign key checks
```
SET FOREIGN_KEY_CHECKS=1;
```

Delete attributes created by Magestore modules

DELETE FROM `eav_attribute` WHERE `attribute_code` IN ('created_location_id', 'webpos_visible', 'customer_telephone', 'sub_id', 'tmp_customer_id');

Remove registered module

DELETE FROM `setup_module` WHERE `module` LIKE 'Magestore%'

III. Remove module code

Remove code
```
rm -rf app/code/Magestore
```
Remove 3rd module dependencies
⚠ If you have any modules that depend on the Magestore modules, you need to disable or removed them in this step too.
Run compilation
```
php bin/magento setup:di:compile
```

Turn on production

php bin/magento deploy:mode:set production