I am trying to accomplish something that may not be possible. My work rents equipment to multiple companies and my boss wants me to setup a "database" of rental equipment and where its located and any notes tied to that #.
With the help of you all I was able to create a Vlookup to pull data from the database when a equipment # was typed into another sheet. That worked great, but then the project parameters changed.
Firstly they want to eliminate "user error" when inputting data, So I made a google form that allows our sales team to input the data into a form, and lock/limit their interaction with the actual data sheet. I can't figure out from there how to have the sheet, check the form data, and pull up to date info into the correct cells on the data sheet.
Here are the results of the form..
And here is my data entry page that I use to track all my rentals. 
Is it possible to pull the data from the forms, check the trailer # in the form data, find it on the data sheet, then update the cells with the information or am I barking up the wrong tree. Also, I need to not erase data on the data sheet, if the cell on the data form is left blank, just to make matters more complicated.
I am open to setting up a actual real data base, preferably free and cloud based(is that a thing?) and going that route, but spending money isn't an option currently.