Retrieve not set in a SiteLogisticsRequest [Enhancement Option]

We are using an Enhancement Option, specifically the SDDInputParams, we are receiving a UUID as you can see in the attached image.

In the ObjectTypeCode.content field we can see that the number indicates 122, after visualizing the repositoryExplorer, we see that this type of object refers to the SiteLogisticsRequest. My problem comes when I retrieve the bo using this UUID, our variable 'whReq' returns us not set. What are we doing wrong?