I'm not sure what you will find or what people here have to track customer specific requirements, but I know there are some threads here where it has been discussed. The problem is each company has different customers.
This is a long time problem, and this could be a good thread to gather some feedback on how folks here track customer specific requirements. I did take a minute and looked at threads here where tracking customer specific requirements is discussed:
Tracking Customer Specific Requirements
This is an old thread but it does give some thoughts:
How to deal with and track Customer Specific Requirements. In Post 4 Wes mentions using a database. My opinion is whether a database vs. an Excel spreadsheet is a matter of your intentions for use. Unless you are planning to do some sort of analysis involving all or part of your suppliers, a database won't be of much value. If all you are planning to use it for is as a reference an Excel spreadsheet with a tab for each supplier should work fine. You would just have to remember that if you are distributing it you will have to lock out the cells so no one can change anything except the person who is controlling the document (it will be, of course, a *controlled document*).
This is not to say Wes' post is in any way not correct. A database is (my opinion) always superior to spreadsheets. Going back to around 1992 or so I used to write databases for companies, so I like them and appreciate their value. The biggest problem that arises is that many, many people have Excel (or a program that will open Excel spreadsheets. The same in not true of databases. For example, if someone wanted to send me a database file from (for example) Microsoft Access it wouldn't help me because I do not have a program which will open an Access database. That said, someone here may know of a free program that will will open Access databases, but I am not aware of one personally.
NOTE: Microsoft's Access is one of the few databases I have had very little experience in. Back in the bad old days writing an Access database was serious programming (aka a pain in the :ca: ). My understanding is they made a lot of improvements and these days it's probably not significantly harder than most databases (with the exception of some "simple" ones like Filemaker which has *always* been easy to program and use {both back ends and front ends}).
Back to your post - I have not seen a spreadsheet for tracking customer specific requirements here. If anyone has one, I know we would all appreciate it is you would share it. A "blank" first sheet would do as copying that sheet for each customer requirement is easy.
But - Bear in mind the problems cited in the thread linked to above:
From post 6:
"The major Problem is how to identify the important things in CSRs or Contracts and make cross-references to other customers". This is true whether a database or an Excel spreadsheet. I will venture to say that's part of why (as far as I have seen, but I could be wrong) no one has yet posted a spreadsheet for tracking customer specific requirements.
So folks - Any input will be appreciated with respect to tracking customer specific requirements including how to share them with other departments.