Authorisation Issue for IDOC type

Hi,

I am setting up PO delivery date confirmation via IDOC communication.

Process is Receiving Company code create PO which is sent via IDOC and creates a sales order automatically through Inbound IDOC in selling company code . This process works fine.

Both Selling and receiving company codes are in same SAP system.

Now , when user confirms delivery date in sales order, it should be sent via IDOC and should update PO with confirmed delivery date. I am using output type BA00/message type ORDERSP/basic type ORDERS05.

I am facing issue with this step. When user confirms Delivery date in sales order and saves, outbound IDOC with order type ORDERSP is generated and processed . However, inbound IDOC is to update purchase order is not created.

When I check in SM58, i see message as 'No authorization to send IDocs with message type ORDRSP'.

I see issue with authorization object 'B_ALE_RECV ' needs to be assigned to user.

however, Our S&A team is not ready to assign this authorization object to business users as it is not advisable.

Strange thing is when same users can IDOC type ORDERSP can be sucsessfully sent to other SAP system through PI.

Is there any way to handle this error without giving authorisation for 'B_ALE_RECV'?

Thanks