Data element with username as type

Good evening,
I am trying the data element with username as type for a event capture program

Once done, at event capture, i am having the following message:

Unsupported value type: USERNAME.

I will be thankful if you assist me on how to retrieve the username in a data element.

Sincerely

Nada

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Nada Ghosn, MD

Head, Epidemiology Surveillance Program (Esumoh)

Ministry of Public Health

Beirut, Museum square

Lebanon

Tel +961.1.614194

Fax +961.1.610920

Email esumohleb@gmail.com, esumoh@moph.gov.lb

Website www.moph.gov.lb