Roy: I think we discussed this earlier on but it has come up a few time since when talking to prospects. they need somewhere to record the batch number for chemicals used... this is important because occasionally chemical manufacturers get a batch wrong and the users need to be able to track back to find out which jobs they used that batch on. It will likely be more simple to just add this as a field on the job form rather than linking it back to the chemical (as this would require the chemical to be updated every time they start using a new batch - which would be very often). Also need to consider: expiry dates for batches if moving into inventory management capabilities. stock locations for inventory as there are regulations they need to comply with in storing chemicals