Purchase requisition & cannot be released with release code &

What causes this issue?

Either the requisition is not subject to a
<DS:GLOS.release_strategy>release strategy</> or the release code &V1&
is not involved in the release procedure.

How to fix this error?

Check whether the purchase requisition is subject to a release strategy.
To do so, display the requisition and then choose the function
<LS>Release strategy</>:

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

<DS:TRAN.ME53N>Perform function</>
Check the release code

Error message extract from SAP system. Copyright SAP SE.