Production order &1 will be deleted

What causes this issue?

There is no provision for production orders in production campaigns.

System Response

Production orders will no longer be displayed in the order list and the
assignment will be deleted when the campaign is saved.

How to fix this error?

Create an appropriate process order for the order quantity and include
the order in the production campaign.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.