Hi.
We have facing this issue quite long time now.
We want to prevent any inventory sells below cost price or below 10% profit margin. Example, if X inventory cost is 10 USD, if account people wants to generate sales entry with 9 usd, it should not create because its below cost.
any possibility or setting ?
No. Manager is accounting software, not pricing software. No accounting principle precludes selling below cost. There are many valid business reasons for doing so: advertising, brand promotion, stale inventory reduction, loyalty rewards for good customers, product obsolescence, and I could go on.
This would never be “account people” but “sales peope” and in your case consider using a Point of Sales Application (POS) for this. I echo all @Tut already mentioned.
I understand this but is there a way that can give is warning ?
No.