Migrate some old bespoke Contact Fields to CDO

Hi there,

I have taken over an old legacy instance of Eloqua, where users have previously created random Contact fields for bespoke event and campaign data, and not CDOs. Now we have hit the contact field limit and I need to cull some unused fields, without dependencies, and migrate those with dependencies to a CDO.

Is there a way to migrate these bespoke fields and the data held within each for all contacts, to a single or multiple CDOs?

Thanks,

Sean