Thank you for this detailed post of how to fix this! Here is my question: how can I do this efficiently with 800+ items? We use QBPOS, and for whatever reason, from the beginning, the items have all went into QBDT as non-inventory items, but they all actually SHOULD be inventory. Now that QBPOS is ending, I'm needing to switch to QBO, but all my inventory is "Non-inventory" but need it all to be inventory.
Please help!! Thank you!!!