I enter material usage logs in a T&M project.
This specific item is used but should not be invoiced directly to the customer, thus only the cost is of interest at the project for this entry.
At entry of the material usage log "billing type" is entered with the value 'Non chargeable',
but as soon as I 'Submit' the transaction, the billing type is changed.
Is there a parameter or setting, that I'm missing here? Or a bug?