BOM for material & & not valid on &

What causes this issue?

You want to display or change the BOM for material &V1& in plant &V2&.
You entered the valid-from date &V3&.
This is not possible, as the BOM is not valid on &V3&.

System Response

The system checks the validity period of the BOM header.

How to fix this error?

Please find out the validity period of the bill of material.
You can display the bill of material over its entire validity period as
follows:
Choose <LS>Material BOM -> Display</>.
In the validity section of the screen, delete all field entries by
entering the special character "!" at the beginning of each field.
Select the <LS>Header qty/long text</> pushbutton.
The next screen you see is either:
the <LS>Header qty/long text</> screen, if the header data has not been
changed using a change number, or
a header overview with details of the different validity periods of the
headers, if changes have been made using a change number.

Error message extract from SAP system. Copyright SAP SE.