What happens to status of targets for existing agreements after modifying the hierarchy type?

When the hierarchy type for existing agreements is modified in Salesforce Manufacturing Cloud, the status of the targets for these agreements becomes read-only. This means that while the data is still accessible and can be viewed by users, no changes can be made to the targets. The read-only status is crucial in maintaining data integrity and ensuring that any historical reference remains intact after the hierarchy type change. This prevents any unintended modifications to target data during a structural change within the agreements.

In contrast, other outcomes such as all targets becoming inactive, displaying error messages for all targets, or archiving all targets would compromise data accessibility or lead to unnecessary disruptions in workflows. By having the status set to read-only, it ensures that users can still utilize the information while also safeguarding against alterations that could conflict with the new hierarchy structure.