Status change for entry &1/&2/&3 not possible

What causes this issue?

Note for translation: (Sequence of the variable does not matter:
'Status switch for entry &1/&2/&3 not possible' becomes, for example:
'Status switch for entry Released/PUBLIC/DE not possible)
The status switch you required for the entry &V1&/&V2&/&V3& is not
possible for one of the following reasons:
You have not saved the current status.
You have chosen the function <LS>Switch to next status</>; however, the
system was unable to determine a unique next status.
For example, for the status <LS>Released</> the next status can be
<LS>For release</> or <LS>Noncritical change</>.
<ZH>Note:</>
The status switch may not be possible due to customer-specific rules,
which you can program in the customer exit C10Y0001.
A status switch is only possible within the status network:
INCLUDE EHS_SAF_27A_STATUSNET OBJECT DOKU ID TX

System Response

The status switch you required was not performed.

How to fix this error?

Save your entries.
Perform a status switch according to the above status profile.

Error message extract from SAP system. Copyright SAP SE.