Invoice - Setting DueDate to null does not omit the field from JSON.

[majilik]

On the Invoice entity, setting the DueDate property to null does not omit the field from the serialised JSON.

This causes the invoice to not pick up the default value set in Fortnox.

Been in contact with Fortnox support, and they state that we should not send null on the DueDate property, and instead omit it.

[richardrandak]

Hi, can you please double check this? I am quite sure the null properties are omitted from the json request.

[richardrandak]

I checked the code, the serializer is set to omit the null properties. The due date was not sent if set to null.