"the error is deficit if sales order stock." this is useless, you should post the exact error message
like in one of your referenced discussions: Deficit of Sales order st. unr. 2 TO : 601100050 RM02 FG21 0108001119 E".
This is a real error message which has a lot information, especially as this error message is dynamically built, any single character in the message is important for a solution.
This error message along with a screen shot of the detailed stock line of your stock in MMBE could give a clear picture on the problem.
in your provided screen shot I can see that you missed to enter the sales order item, without that, SAP cannot access the this sales order item to retrieve the necessary information, like the special stock indicator SOBKZ
