When is an abnormally low offer considered?
Ok, here is the text with a much more human touch and less legalist robot:
Look, the "abnormally low offer" roll is basically this: someone reaches a public tender and throws such a cheap proposal that makes the eyebrows lift around the world. It is one of those offers that you see and think, "how are they going to do that without losing money ... or without cheating?" The Public Sector Contract Law, in article 149, puts the rules of the game to handle these types of situations, which, incidentally, are not as rare as one would believe.
Why so much mess with these offers? Because many times the fear is that the company does not have the resources or the minimum idea to fulfill the contract. Or worse, that they are trying some rare play to win yes or yes, although then they cannot deliver anything. Sometimes it is simple naivety, sometimes pure impudence.
And how is one of these "suspiciously" offers detected? There is no magical formula, but in general they compare all the offers and if yours is super far from the average or the base budget, then ... eye, a alarm on.
Now, it is not that they throw you from the direct contest. The law says that, before sending you for a walk, the administration has to ask for explanations in writing. It is your time to look and say: "Eh, I have my reasons!" You may be more efficient, use new technology, or just buy everything cheaper. If you convince, you are still in the fight.
Of course, they don't paint it easy. If you are going to present a tiradísima offer, prepare to sweat the fat drop justifying everything. Sometimes it is more messy than it is worth.
Total, that an abnormally low offer is like that bargain that seems too good to be true. If you can demonstrate that you have how to do it without liating it, or for you. But be careful, because going ready with impossible prices can put you in a eggplant. Sometimes, it is better to go as a realistic than optimistic and end up winning contracts ... without dramas.