Our inventory in Magento is incorrect because we have negative inventory in some stores. Does Magento account for negative inventory and calculate the correct inventory via the integration from multiple stores?
Magento does not accept multiple inventory values. The integration only gets one inventory value from your POS system. Any addition of positive and negative values from various store locations must happen on the POS side. If your inventory is off, it may be because your POS system is not adding all the stores together or including all the correct stores. Consequently, Magento is not getting the correct inventory value. Contact your POS system support team and verify that all the applicable stores are being added together correctly.