BAdI MB_MIGO_BADI CHECK_ITEM Error Message Handling Error

Hi all,

I've created a Z table to check whether user is authorized to make 201 against a material group.

To manage this, I've written my code to MB_MIGO_BAdI and CHECK_ITEM.

But there is very strange problem. When user enters a material that he is authorized and click check button he is getting an standart SAP error message which about Funds Management. Up to here, everything is OK.

After that, when user adds second material which he is not authorized, he is getting my error on related line but first line becomes GREEN indicator again. But there was standart SAP error about FM. So If he clicks Post he is getting this standart error again.

I which, I've introduced process well.

Waiting for your comments.

Thanks in advance....