How does the supplier opertaion of serialized WO make backflush transation when OSP PO receiving?

Summary:

Hi,

When user received OSP PO, the related WO(serial unit) did not happen backflush even the supply type is set operation-pull.

So I would like to know how the supplier opertaion of serialized WO make backflush transaction when OSP PO receiving?

Details are below contents.

Content (please ensure you mask any confidential information):

This is work order for serial item.
And the item 60031805 has supply type =Operation pull

PO receving

But no transaction for wip issue in transation history.

Thank, Akiba

Version (include the version you are using, if applicable):

25C

Code Snippet (add any code snippets that support your topic, if applicable):