How to specify batch in Subcontracting PO GR?

Hi Gurus,

A batch is created for the initial stock of 10 EA.

A subcontracting PO is created for 1 EA.

Components are issued.

When doing GR, batch is required. I tried the original batch and a manually created batch. Neither of them works.

Leave batch field blank and let system generate batch no. and still got the same error message.

Enter Batch

Message no. M7018

Diagnosis

You have not entered a value in field "Batch" although an entry in this field is mandatory.

Please kindly help me understand what is wrong.

Many thanks,

Sally