PO Credit line automatically closing for receiving once approved. Why?

Summary: We're testing out credit lines on POs, but as soon as the PO is approved by our capital team, the credit lines go into a closed for receiving state. Does anyone know why this is the case, and how this can be avoided?

Content (please ensure you mask any confidential information): PO Credit Lines

Version (include the version you are using, if applicable): 24A

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