What reasons are valid to challenge a sheet?
Do you want to challenge a specifications in a public tender? Yes, it is totally your right as a company. It is not just a boring formality: if you see that there are strange or directly illegal things in the hiring process, you can (and should) raise your hand. Nothing to stay silent while distributing the cake under the table.
The classic? Absurd or discriminatory requirements. That is, when they ask for such technical or so expensive things that only the company "Amiga" can fulfill. Thus, direct, as if it were tailored. That goes against the State Hiring Law, which says Clarito: the requirements must be proportional and fair, so that it competes as many people as possible. If they leave you out with ridiculous rules, there you have a reason to challenge.
Another jewel are the confusing or suspiciously ambiguous evaluation criteria. If the criteria are not clear or allow “creative” interpretation as it suits the jury, then bad matter. Everything has to be well defined and verifiable, nothing "at the discretion of the committee." If you see that the scores seem taken from the sleeve or that some point blatantly benefits one of the bidders, you know: challenge to song.
And let's not forget direct violations to the law. Lack of advertising, invented deadlines, processes made to the trouble or behind closed doors ... all that is challenging. Even if the sheet has incorrect or incomplete information, you can also claim. How are you supposed to prepare a serious proposal if you don't even know what the contract is going on? Ridiculous.
Now, if the specifications seem to favor "the usual company" - you know, the one that always wins - can also be challenged. Sometimes you realize that the requirements seem designed with name and surname. That smells ugly and is more than enough reason to file your claim.
And how is that done? Presenting a appeal for challenge to the entity that organized the tender, and beware of the deadlines, which do not expect anyone. There you have to explain very clearly why the sheet is not valid and what changes you propose. Without surroundings.
In summary, if you get into a public tender, you better know your rights and be batteries before any irregularity. Challenging is not a tantrum: it is using the law to make the process fair and transparent. If not, the one that Calla grants, and we already know how that ends ...