What is Service Request With USCIS

While going through EAD process I came across this term - Service Request Or SR as people call it.  I am not doing my EAD through attorney and so I have to figure out everything from various articles on the USCIS site. Believe me, USCIS site is the ultimate source of information that one needs but sometimes I want to have a quick reference to what I read/understood to avoid the trouble of reading everything again.

In short, below points would summarize Service request,

• It is an inquiry made to USCIS to track case (e.g. Visa, EAD)
• It is useful when someone needs an update on their case from USCIS
• It can be raised by anyone - Applicant, their Employer or Attorney.
• It can be raised online or by calling USCIS
• It can be raised for various reasons, such as:

1. Case outside normal processing time
2. Did not receive notice by mail
3. Did not receive card by mail
4. Did not receive document by mail
5. Take Appointment
6. Raise any typographic error

All the best