Zend certified PHP/Magento developer

How to solve “The stock item was unable to be saved”?

I was using the Magento 2.3.2 normally, but since I updated to Magento 2.3.3 I’m not able to create a new product anymore. I’m receiving this message below.

The stock item was unable to be saved. Please try again.

Magento 2 The stock item was unable to be saved

My exception.log is logging this message:

[2019-11-06 17:30:42] main.CRITICAL: The stock item was unable to be saved. Please try again. {“exception”:”[object] (MagentoFrameworkExceptionCouldNotSaveException(code: 0): The stock item was unable to be saved. Please try again. at /Users/rafael/dev/mystoremagento/vendor/magento/module-catalog-inventory/Model/Stock/StockItemRepository.php:187, MagentoFrameworkExceptionCouldNotSaveException(code: 0): Could not save Source Item at /Users/rafael/dev/mystoremagento/vendor/magento/module-inventory/Model/SourceItem/Command/Handler/SourceItemsSaveHandler.php:78, Zend_Db_Statement_Exception(code: 23000): SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (mystoremagento.inventory_source_item, CONSTRAINT INVENTORY_SOURCE_ITEM_SOURCE_CODE_INVENTORY_SOURCE_SOURCE_CODE FOREIGN KEY (source_code) REFERENCES inventory_source (source_code) ), query was: INSERT INTO inventory_source_item (source_code, sku, quantity, status) VALUES (?, ?, ?, ?) ON DUPLICATE KEY UPDATE quantity = VALUES(quantity), status = VALUES(status) at /Users/rafael/dev/mystoremagento/vendor/magento/framework/DB/Statement/Pdo/Mysql.php:110, PDOException(code: 23000): SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (mystoremagento.inventory_source_item, CONSTRAINT INVENTORY_SOURCE_ITEM_SOURCE_CODE_INVENTORY_SOURCE_SOURCE_CODE FOREIGN KEY (source_code) REFERENCES inventory_source (source_code) ) at /Users/rafael/dev/mystoremagento/vendor/magento/framework/DB/Statement/Pdo/Mysql.php:91)”} []

Even doing these tests it doesn’t work:

  • Disabling all third-party module
  • Running the install process (using the same DB)
  • Exporting and importing the DB