OTB Transfer for changes in article hierarchy dont appear in WOTB3 transaction

Hello,

whenever we change article hierarchy , we also need to transfer budget for the same from one budget to another.

Here is the scenario.

we create a PO P1 for article A from hierarchy H1 . it will consume budget b1(assuming: H1 is having budget assigned as B1) . now if we change the hierarchy of article A from H1 to

H2 (assuming H2 is having budget B2 assigned ). Will PO P1 release the consumed amount to B1 and will consume amount from B2(as hierarchy has been changed from H1 to H2) If yes then from what time? (will it be the validity start date of A1 in H2)

If yes then it is not happening. Please suggest if we are not following any steps.

Thanks,

Gaurav