Can I modify an offer already presented?

Well, look, the roll with public tenders is that, once you release your offer, there is no turning back. It's like launching a piece of paper in a raffle: what you put, there it stays. And yes, all this is for anyone to cheat or try to take advantage by changing the rules in the middle of the game. Transparency, equality, competition ... The usual.

Now, is there a chance to change something? Well, almost never. The laws in most countries are clear: you sent your offer within the deadline, the mailbox closed, forget about walking prices or moving conditions. Neither up or down. They don't want anyone to come with last minute truquitos, you know?

Of course, there is always that small letter, because sometimes (very counted, the net), the bidding process itself lets you put some modification or clarification ... but only if it is before the deadline closes. That is why you have to read the specifications as if it were the contract of your data plan: there is everything you can and cannot do.

And well, in rare cases, after sending your offer but before they say "you earn", the entity can ask you to clarify some point. But be careful, you can't take advantage of changing something crucial or giving you an extra help. It is rather to explain any questions, not to rewrite the story.

So, if you are a company and want to enter a tender, it is best to check everything ten times before sending it. Read what they ask for, put together your strategy, check the numbers, and make sure the papers have no errors. Because once you give him "send," he already danced.

In summary: Modifying an offer already presented in a public tender is almost impossible mission. There are exceptions, yes, but there are few. Ideally, do things well from the first, not to walk later.