Taleo how can we post requisition only to internal career portal?

Summary

Taleo how can we post requisition only to internal career portal?

Content

Hello ,

In Taleo ,when posting a requisition , we would like for some requisitions to be posted ONLY for the internal portal.

When we click on requisition -> sources -> career section - and uncheck the ‘external’ career section ,we get the following error -"This requisition cannot be posted. Since this requisition is eligible for an employee referral program, you must select at least one external career section."

How can we have requisitions posted only to the internal career portal please ?

See attached file.

Thanks

Revital.