Customer agreement for non inventory part

@celine In Customer Agreement / Deal per Part you can add non-inventory sales parts also. There should be no limitation on this.

Do you get a specific error message, or?

Yes, you can add non-inventory sales part to a customer agreement, on the deals per part tab just like any other sales part. Note, the non-inventory sales part must be added to sales part base prices first, in order to add it to the agreement.