The planning time fence was set to date &1 &2

What causes this issue?

You have manually set the planning time fence to the date &v1& &v2&.
The manually set planning time fence overrides the planning time fence
from the product master.

System Response

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

How to fix this error?

If you want to delete the manually set planning time fence, select the
<LS>set planning time fence</> function without previously selecting an
order.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.