Unanswered: Microsoft Access Error Any Help Please
i have this form in microsoft Access which contains the fields refno name cpr and o combo box to choose the payment and add button , refno is the primary key....
when i open the form the ref no automatically appears and when i fill in the fields and choose one of the chosses from the combo box i get this message error Index or primary key cannot contain a null value
where is the eroor exactly?
The error is exactly what it says. You are trying to create a new record and haven't assigned a primary key. If you need more detailed analysis, you'll need to provide more detail about EXACTLY how and what you're doing when you add a new record.