SIL: How can I set to null a customfield using SIL Language?

[Begoña Bonet]

I'm using SIL and I have to clear the field A (customfield_20901) when the customfield B (customfielc_20900) is changed. Thus, I've an script with:

#{Técnico Asignado Servicio}="";                 // A Single Text customfield (customfield_20901)

This script is launched by:

lfWatch("customfield_20900", {"customfield_20900"}, "/datos_apl/jira/silprograms/proyectos_soporte/busqueda_tecnicosoporte/limpia_tecnicosoporte.sil");

After that, I can see the field in the view screen (it means that the customfield has value, perhaps a blank). How can I become null this field? I've tried with:

#{Técnico Asignado Servicio}=null;

But an error appears when I check the sintax, 

[Alexandra Topoloaga · Accepted solution]

This should work:

lfSet("customfield_20901", "");

[Begoña Bonet]

Yes, it works. Thanks

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