Referenced document not yet posted (Comp.Code &1, F.Year &2, Document &3)

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

What causes this issue?

During processing of a follow-on document the referenced document was
not found.
This is usually a temporary problem caused by the sequence in which
documents are processed. Either the processing of the follow-on
transaction was started before the referenced document was posted or
reprocessing of the referenced document using the function ?Central
Reversal with Reposting? was incomplete or the processing of the
packages in the initial load did not occur in the correct sequence.
This error message might also be generated in AIF for a reset clearing
transaction if the open items which are referenced by the reset clearing
have not been replicated into the Central Finance system, for example,
because they were not included in the initial load.

System Response

If this message was raised during online replication, the AIF message
has to wait for the referenced document to be posted (or reposted).
If this message was raised during the initial load, an error is
displayed in the error log for the corresponding package.

How to fix this error?

For online replication, restart the AIF message once the referenced
document has been posted (or reposted).
For the initial load the run must be repeated until the error
disappears.
If a reset clearing is to be posted, the missing open items need to be
replicated to the Central Finance system.
To do this, execute report RFINS_CFIN_CORR_MISSING_CLRITM in the Central
Finance system to repost the missing document items to the Central
Finance system.
Then restart the reset clearing message in AIF which generated this
error message.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.