Backend errors not displayed

Hi Experts,

I need help in the below issue.

My backend errors from ECC system are not displayed in SRM portal whenever the Purchase order is created.

For eg.

The backend error "Back end error:G/L account cannot be used" is not displayed during the creation of PO in srm.

Due to this,the PO is created successfully in SRM but not getting transferred toECC .

Please let me know whether any configuration needs to be done in SRM side for displaying the backend errors or any code changes are needed.

Thanks,

Rohini