Unable to add contract manufacturer service item under BPA lines

Summary:

We have contract manufacturer setup as a supplier. We want to create service PO for the contract manufacturer against the work order. However we are not able to add the CMSC (Contract Manufacturer Service component) item to the BPA lines.

Content (required):

The item we have created is assigned to the seeded template : Contract Manufacturer Service component

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):