Hi,

The error “Nothing to check the availability for” occurs in Odoo when validating a Purchase Order delivery because the system cannot find any stock moves to process. This typically happens if the picking has no stock move lines, if the products have already been fully received, or if the PO and picking states are inconsistent. It can also arise due to incorrect warehouse or route configuration, or mismatches in product units of measure.

To resolve the issue, first check that the picking contains all products with the correct quantities. Ensure the PO is in the appropriate state and that the picking is ready to validate. If necessary, cancel and re-generate the picking from the PO. Additionally, confirm that products are stockable, suppliers and routes are properly configured, and the warehouse settings are correct. In many cases, especially with imported POs or multi-warehouse setups, the problem stems from missing stock moves, which must exist for Odoo to validate the receipt.

Enabling Developer Mode can help inspect stock moves linked to the picking, making it easier to identify and correct missing or misconfigured lines. Properly generating or recreating the picking ensures that the validation process can proceed without encountering this error.

Hope it helps