What is an as-built dossier?
It is the record of what was actually installed, as opposed to what was planned. Which device went into which vehicle, with which SIM, where the wires were taken, which settings were loaded, what was tested, and what is still open.
Six months later, a device stops reporting or a driver says the alarm went off for nothing. The installer has moved on. The dossier is what your team opens first.
How to build it
- Start on day one. Fill the register as each vehicle is done, not at the end.
- Use one naming rule. Plate, then the document or photo number, for every file.
- Tick the index. Included, Missing or Not applicable, with the file name.
- Move gaps to open items. Each with who does it and a due date.
- Sign when the sheet says Ready. Or sign with the open items listed, if both sides agree.
What the workbook checks
The length checks catch typing and copy errors. They do not prove a device or a SIM is registered anywhere. For the IMEI check digit, run the list through the fleet list validator on this site. An IMEI has 15 digits and ends in a Luhn check digit (3GPP TS 23.003). ITU-T E.118 (09/25) gives the ICCID 19 digits, starting with 89 and ending in a Luhn check digit. The check also accepts 20 digits: confirm such a number against the SIM card. Sources last checked 2026-11-03.
Server addresses and APN names belong in the dossier. Passwords, SIM PINs and login details do not. Hand those over through your own secure channel.
Limits
The dossier records what was installed and handed over. It is not a warranty, it does not change your contract, and it does not confirm that a device, an installer or a platform meets any requirement.