Do all consulting firms let their clients have whatever unreasonable thing they want?
I'm lead engineer on a Salesforce enterprise project I began in late February. It's a brand new build to handle the merged business of two companies. The customer looked at the project plan and insisted we cut one month out of it, which, obviously, rushed the project. We cut the timeline with the understanding that we could only maintain it if the customer delivered all their requirements on time. They missed every one of their deadlines and piled on more requirements for us to squeeze into the limited timeline. When I pointed out that their missed deadlines posed risk to the timeline, they aggressively told me it wasn't useful to point out the things that stress everyone out. I genuinely don't know how to handle a client this aggressive without the conversation going sideways.
They insisted we continue developing new functionalities through UAT. Several teammates and I have had to work six-day weeks for months, sometimes seven-day weeks, and had to work every day of the Labor Day weekend. At 8:30 on the day we began deployment, the client told us to change a basic setting that affects the way everything is priced and calculated. After deployment, their project lead noticed a single picklist she didn't like and said she couldn't sign off on a project that wasn't well built or well thought through.
At no point in this saga would the company listen to my entreaties to hold the client accountable. The reason my superiors gave me is that the client is paying so much money and our company wants future business, so we have to make them happy. Is this normal in consulting? If I leave for another consulting firm, will I have the same experience?