Manual posting to G/L

Hello,

I have a scenario where we have the COGS G/L which is blocked for Manual postings. Now in case of a Third party sales scenario when the PO is created from the Sales order it is a account assigned PO so the G/L determined from GBB- VAX is the COGS G/L. But now as this G/L is locked for manual posting I am not able to process the PO.

Is there anyway I can bypass this lock for this particular scenario.

Kindly advise,

Points will be awarded,

Thanks