Change the Debit/Credit Indicator for Movement Type

Hi all,

How can we change the Debit/Credit Indicator & Reversal movement type Indicator for a movement type?

A new movement type was created, and has been used for a while in the Sales cycle as a reversal of PGI.

But we discovered that instead of increasing the stock, it's been decreasing the stock.

I think the problem is in the Debit/Credit Indicator.

But I couldn't change it in the OMJJ or in the table V_T156SY.

Can anyone help me with this please?

Thank you and best regards,

Kifah Yacoub