No HR data selected for control station group &

What causes this issue?

The System was not able to select HR data
for the selected control station group.

System Response

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

How to fix this error?

The assignment of control station group to PDC
group is effected by means of table T705S.
The System only selects HR data which is assigned
to a control station group via the PDC group.
Options : Assignment of PDC group to
control station group, or
assignment of employee to
PDC group.

Error message extract from SAP system. Copyright SAP SE.