ESS Business Package Error: Period type not allowed for profile ESS

Hi,

We are trying to configure the business package for Employee Self Service on Enterprise Portal 6.0. We followed this SDN contribution <a href="https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/21eb036a-0a01-0010-25a3-b2224432640a">ESS doc guide</a>

So far we have successfully deployed the business packages and followed all the configurations that were pointed out in the doc guide. Unfortunately when we try to access the Employee Self-Service portal pages (Overview, Employee Search, etc), we encounter this error:

Critical Error:

Period type not allowed for profile ESS, error key: RFC_ERROR_SYSTEM_FAILURE

com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException:      Period type not allowed for profile ESS, error key: RFC_ERROR_SYSTEM_FAILURE

Any ideas on how to fix this issue?

Regards,

Jojo