Order contains unreleased documents

What causes this issue?

<DS:GLOS.3526BE9CAFAB52B9E10000009B38F974>Documents</> from the
<DS:GLOS.3526B4FEAFAB52B9E10000009B38F974>document management system</>
that have not yet been released are assigned to this order. Depending on
the system settings, the order cannot therefore be distributed to an
MES.

System Response

If this message is configured as an error, the order cannot be released
because distribution to the MES is linked to the release of the
production order.

How to fix this error?

Check the PRT and the document overview of the order for assigned
documents and release the latter. Alternatively, you can delete the
assignment of the non-released documents to the order.

Procedure for System Administrators

You can influence the properties of this message in
<DS:SIMG.SIMG_CFMENOLPFOPJB>Customizing</> and thus suppress it if it is
not relevant to your business process.

Error message extract from SAP system. Copyright SAP SE.