Function Module to update table MBEW

Hi experts,

I'm currently using non valuated materials, but I have a requirement to have material also controled by value (for non-financial purposes).

I'm designing a solution in which the values will be updated in a custom table (ZMBEW) that is similar to MBEW table, and every time there is a goods movement the values will be updated on that custom table as if we were in a standard scenario for a valuated material.

The part that I'm missing is the function modules/BAPIs, ect that update MBEW when goods movements are done - goods receipt, goods issue, material transfers, scrapping, inventory adjustments, etc.

Can any of the experts tell me how table MBEW gets updated (techincally) when this material movements are done?

Many thanks

Joana