Welcome,

We have encountered an issue in our environment related to the returned purchase order process from the project module, and I would like to share the scenario with you for further investigation.

Issue Description:

When creating an item requirement and generating a purchase order from the same screen, then receiving the items (either partially or in full) and invoicing the purchase order, we later proceed to return this purchase order from the project by following these steps:

1. Create a new purchase order from the project with type Returned order.
2. Select the original invoice that needs to be returned.
3. Post the product receipt and invoice for the returned order.

Observations:

After performing the above steps, we observed the following:

1. The on-hand inventory quantity does not decrease after the return.
2. Inventory transactions are created as expected, but the system also adds an untitled line with type "Transaction".
3. The financial and physical vouchers related to the line mentioned in point #2 reverse the vouchers of the returned purchase order.

This issue was tested in a standard demo environment without any customizations, and the same behavior was observed.

We would appreciate your support in analyzing this issue and advising whether this is expected behavior or a potential bug.

Looking forward to your feedback.

Best regards,