I'm in a situation where i need to add a default value "blank" to my "Two Options" field. Since I cannot set a default value of "null" to an already created Two Options field, I though of creating a new custom field of type "Option Set" and add the same two options Yes/No in addition to setting the Default value to Unassigned.
I need to create a workflow that copies the old values choices into the new field. I understand that I can't simple equate the values of two fields of different type but I'm going to do that with Check conditions to set the new field value corresponding to the old field value.
I'm not sure how to run this workflow against all the existing records in my CRM online with no codes. Is that possible ?