Status (&) & does not follow status (&) &

What causes this issue?

You want to change the document status and have entered (&V1&) &V2&.
Via settings in Customizing (Document management), the previous
statuses are defined for each document type.
The current status (&V3&) &V4& is not one of the previous statuses of
the entered status (&V1&) &V2&.

How to fix this error?

Check your entry and correct it if appropriate.
Display the possible entries and select a status from these.
If the status network is incomplete, contact your system manager. The
status network may need to be added to.

Error message extract from SAP system. Copyright SAP SE.