Stock category changing in WM level

Hello guys,

I need to change a material in stock from regular to E stock, also in bin level. I'm using 412 E for IM, which works well for this. Behind the scene, which movement I should use in WM in order to change it in WM? I don't need to move the material, I just need to change the stock category.

I have tried to use a movement 311 in WM trying to send it to the same bin with different category, but it searches for a stock E in the source and I don't want it.

Also I've tried a simple posting change movement trying to create a posting notice, but you guys have a better idea.

Thanks

Antonio