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Integrity Constraint Violation Error Cart in Magento 2
magento 2 CMS permits altering the default highlights in light of business prerequisites. Magento 2 occasions are executed to run custom code in light of a specific Magento 2 occasion or custom occasion.
Here, I am posting the answer for the blunder that happens while utilizing the occasion "checkout_cart_product_add_after".
You can utilize this occasion when you need to consequently add an item to the truck when the client adds one more unambiguous item to the truck.
For instance, a handling expense or a free thing can be naturally added as an item when a client decides to buy a thing.
In any case, when you carry out a similar utilizing the "checkout_cart_product_add_after" occasion, you might confront a mistake that states,
Trustworthiness requirement infringement: 1452 Can't add or refresh a youngster column: an unfamiliar key imperative come up short
The mistake happens in light of the fact that the computerized thing is saved.
You should simply eliminate or remark the $item->save();
When you eliminate "$item->save();", you'll get the integrity constraint violation error referring to quote_item table while adding product to cart in Magento 2.
For more info, visit https://meetanshi.com/blog/solved-in...-in-magento-2/
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