Availability Control (AVC) is enforced in FM when posting a GR by BAPI

Dear experts,

We use BCS.

Availability Control (AVC) is NOT enforced in Funds Management (FM) when posting a Goods Receipt by MIGO. And it is good for my client.

However when posting a Goods Receipt by BAPI the AVC is working.

How may I disable it?

Any customizing? Maybe using Derivation Rule or any other option of FMDERIVE?

When I debug the code I see:

Cl_gm_actual_mgr

Method:

AVC_SET_RESTRICTIONS

if sy-tcode = MIGO ...

EX_CHECK_FUNDS = SPACE.

I can add the code the Z t-code that we've wrapped this BAPI by it, however I'm looking for elegant way.

BTW,

I've read SAP NOTE 696362, a good explanation how to do the opposite: explaining how to enforce AVC for posting a Goods Receipt by BAPI. I need the vise versa.

Thanks in advance,

Noy.