Is there a way to make the default value of a URL parameter blank?

[Anonymous]

The default value of a URL parameter is a required field. Is there a way to make this field blank if no URL parameter exists?

[Josh_Hill13]

so the inbound link has no params at all? or is not under your control?

You could use param=NULL which Marketo will interpret as blank.

[Anonymous]

Sometimes the inbound link will have no parameter and I would like the field to also be blank, however Marketo requires a "default value". I was asking if there was a way to keep this blank.

[Anonymous]

We use a space and that seems to work--Marketo seems to interpret that as NULL.