Expiration date was not calculated (date of production field is empty)

What causes this issue?

The system has derived the date of production, but has not yet derived
the shelf life expiration date. In this situation, the system tries to
calculate the shelf life expiration date. However, it has not
calculated this because the derived date of production is blank.

System Response

The blank shelf life expiration date is the result of the derivation.
Whether an error or a warning message is issued when the blank field is
transferred to the receiving batch depends on:
The contents of the field in the receiving batch
The rule defined for the date of production in the condition record
The shelf life expiration date inherits the rule of the date of
production because it does not have its own rule.

How to fix this error?

Either:
Check the date of production and the shelf life expiration date
If necessary, enter these manually in the receiving batch
Or:
Maintain the date of production in the sending batch/es and repeat the
derivation.

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.