Hi Kobe,
As per the earlier message, all the 5 steps are correct.
If you want the material to be moved from C1 to C3, in IE4N you need to enter the valuation type as C3 and execute.
Since you have maintain only the Master Batch, system will allow you to change the valuation type in IE4N.
If you just remove C1 and press Enter, system will populate C1 again. Rather than input the valuation type you want to change and save it.
In continuation to your process
Step 6 : Enter the details in IE4N and enter the valuation type C2 or C3 to which you want to move and save.
Step 7 : Verify the Material and Serial Number in IQ03, you can see the batch is changed to C2 or C3 respectively.
When you re-install the Equipment after correcting the maintenance, the Master Batch will be C2 now.
Hope this clears your doubts.
Regards
Terence