How to Save Configurable Product with Big Length SKU in Magento2

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As the numbers of online customers are increasing
so the numbers of shopping sites are also
increasing with the time. When there are a lot of
options available for a customer to purchase then
why would he purchase from your store. Ease of
shopping feature can attract customer to your
store. Here ease of shopping refers to multiple
factors like variety in product size, color,
variant, easy checkout process and many more.
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Like traditional way of shopping customers buy
items and often discriminate based on its color
or other attributes, same is observed with online
shopping. Magneto provides the functionality to
facilitate such shopping environment this makes
Magento the most popular ecommerce platform.
Configurable Product is one of the ways Magento
offers to cater these requirements. Due to this
customer can select their desired variant of the
product without having to browse numbers of
product pages.
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SKU (stock keeping unit) is an identification,
usually alphanumeric which is assigned to each
product that allows it to be tracked for
inventory purposes. While saving a configurable
product with big length SKU a fatal error is
observed Notice Undefined variable product in
/MASKED_DIR/2018-08-06_12-56-07/htdocs/vendor/mage
nto/module-catalog/Controller/Adminhtml/Product/Sa
ve.php on line 156
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Recently our Magento experts have found a
solution to eliminate this error. If you are
facing such errors then kindly follow the steps
given below. Step -1 Initially, set "const
SKU_MAX_LENGTH 255" in the file module-
catalog/Model/Product/Attribute/Backe
nd/Sku.php Step -2 You need to change the
into database as well. Go to table eav_attribute,
search for SKU at column attribute code then edit
the resulted row. Update the field frontend_class
to null or validate-length maximum-length-255
according to your requirement. Step -3 You
have to change field size at the database
table. ALTER TABLE catalog_product_entity CHANGE
sku sku VARCHAR(255) CHARACTER SET utf8 COLLATE
utf8_general_ci NULL DEFAULT NULL COMMENT 'SKU'
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By implementing the above steps you can easily
add the configurable product having big length
SKU. Hope this solution works for you. If you
have any better ideas please leave a comment
below. Still facing a problem with this then drop
us a message. Our Magento experts have ample
experience in providing out of the box Magento
solutions. Planning to hire Magento developer
then contact us.
http//www.ecomsolver.com/