MIke Hydro standard boundary condition

I have multiple river network and while defining standard boundary condition for one of the river netwrok it is giving error.

Error: Boundary "B-5_out_main" at location "5", 39350.30 is not in network. (EN_ERR_BoundaryNotInNetwork)
Error: "Open source boundary of type WaterLevel on rounting node" (GE_ERR_Generic)

Thank you for your post.
Since this seems to be a support enquiry we suggest that you contact our support team at MIKE@dhigroup.com and we will be happy to follow up on this matter.
Best Regards.
DHI Admin