error message M7 021 in confirmation

hi

in process order i have asigned one raw material to a operation and hv activated backflush tick for that raw material.while doing confirmation i am getting error message since available stock of that batch is less.

APLICATION AREA -M7

MESSAGE NUMBER -021

MESSAGE TYPE- E

Deficit of BA Unrestricted-use 128.430 KG : 100000443 3000 3000 RM08-0160

Message no. M7021

Diagnosis

Shortfall below the specified stock level or quantity amounting to 128.430 KG.

System Response

If the message is an error message (E), the above is not allowed.

If the message is a warning message (W), the system will allow your input, but the warning is intended to prevent you entering a wrong quantity.

my requirement is i want to convert this error message to warning mesage.

in OMCQ for this message warning is given.but than also i am getting error message.

in opk4 i tried by removing tick in goods movement but culd not get desired output.

kindly suggest