Custom user attribute does not appear as an option in OMDO configuration

I americium trying to make a customized User Attribute successful Configpanel successful the customized namespace (Z) arsenic per documentation:

Configuring Mobile User Attributes | SAP Help Portal

However, erstwhile created, it does not look successful the Attribute database for the idiosyncratic successful (/n/syclo/admin -> medication -> idiosyncratic absorption -> idiosyncratic attributes). It besides does not look successful OMDO filter configuration worth database erstwhile utilizing Mobile idiosyncratic property option.

Any assistance connected this?

Best regards.
Gonzalo.