Problem with enhanced org. structure - how to add a new distribution channel in created sales organization?

Hi, experts.

I faced a problem with new sales scenario. I need to add 2 new distr. channels. But yet in our production org structure is 1 sales organization (SalesOrg2) with 1 distr. channel.

New sales data with new sales organization was generated successfully, but new distribution channel in old sales organization wasn't generated successfully.

Problem is that i cannot add new distribution channel manually because distr. chan. D5 isn't available for selection in txn. POSSA_CRM

But in sales scenario new distribution channel was replicated right.

What is wrong? Is anybody knows solution of this issue?

Best regards,

Galinsh Tatyana.