If your source plant stock is in unrestricted and your destination plant as blocked.
Then you can't do it within one movement type.
Suppose you have stock in plant XXXX in unrestricted and you want to transfer the stock to plant ZZZZ in blocked.
Then either you have to use 301 for plant to plant first, then 343 unrestricted to blocked or first 343 unrestricted to blocked, the 325 for plant to plant within blocked stock.
Regards