Diagnosis
You are allocated to a user group of the accounting department to which the specified amount restriction applies.
Procedure
If you entered an incorrect amount, correct the entry, otherwise, you can only enter the desired transaction if you are allocated to a different user group or the amount authorization of the user group is changed.
SOLUTION :
STEP 1 : Go to T Code OBA4 and Provide the Upper limit in field Amount per Open Item Account Item > SAVE.
Thanks,
Adharsh K S