The similarities and differences between the two versions of Odoo, Odoo 12 and Odoo 13 is shown here.

1. Odoo 12 vs Odoo 13 Inventory

2. Forecast Stock
New view for forcasted stock, which helps to easily find stock
moves impacting your stock.

4. From product views, click on Forecasted smart button and directly
see over certain timeline the actual forecasted quantity.

5. This feature is not available in Odoo 12.

6. Update Quantity/Inventory Adjustment
Click on Update Quantity button.
Or click On Hand smart button in product form.

7. From here edit On Hand Quantity.
Or directly go to Inventory Module, Then Reporting -> Inventory
Report
Select your product and edit inline On Hand Quantity

9. In Odoo 12 , Update Quantity by clicking on UpdateQuantity
button. It will pop up a wizard or redirect to inventory adjustment.

11. Inventory Adjustment

12. Here is an option to adjust default stock to on hand or default
stock to zero.
Click on Start Inventory button,

13. Edit Counted field and it will automatically calculate
difference.Then save your changes.

14. You can edit again stock values by clicking on Continue Inventory
Button.
Then finally click on Validate Inventory button.

15. Edited lines shows here.You can also print Excel report of the
lines by clicking download icon on left side.

16. But in the case of Odoo 12 Inventory adjustment process is
different from Odoo 13.

18. Inventory Report
Go to Reporting > Inventory Report

20. Filter inventory report by date

21. In Odoo 12 , when you click on Inventory Report menu pop up a
window then you can choose date.

24. Serial Numbers Mass Assignation.
Fast serial number creation in Odoo 13.

25. This is a Reciept order for a serial number product

26. Enter First serial number and Number of serial numbers,Then
click on Assign Serial Numbers.

27. Serial Numbers will be created.
Then you can aslo copy paste serial numbers.

28. Just copy and paste serial numbers and then it automatically
create serial numbers.

30. This feature is not available in Odoo 12.
Inventory Valuation Layers
Every valuation increase or decrease is logged.

33. This feature is not available in Odoo 12.

34. Inventory Valuation
In Odoo 13 Inventory , go to Reporting ->Inventory Valuation

35. Company name also shown in inventory valuation.
Click on on any product, you can see new form view. Further
details about inventory value will be shows here.

36. Stock move of product shows here.

38. After that you can select date ,then inventory valution at specific
date will shows.

39. Every valuation increase or decrease is logged.
In Odoo 12 Inventory Module,Go to Reporting -> Inventory
Valution
You can see which is different from Odoo 13 inventory valuation.

40. When you click on Inventory valution menu it will pop up
awindow, here you can select at a specific date or current
inventory.

41. When you click on any product,it will shows form view of
product. Further details about inventory valuation is not available.

42. Inventory Adjustment
Here is an option to adjust default stock to on hand.
Or default stock to zero.
Click on Start Inventory button.

44. Edit Counted field and it will automatically calculate
difference.Then save your changes.

45. Thank You
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