## UPC: the release code

A **UPC** (Universal Product Code) identifies a whole release: a single, EP or album. It has 12 or 13 digits.

## ISRC: the recording code

An **ISRC** (International Standard Recording Code) identifies one specific recording. It looks like `CC-XXX-YY-NNNNN`, for example `GB-ABC-26-00001`. Dashes are optional when you enter it.

## Do I need to buy them?

No. **Leave the fields empty and DistroVibe assigns them for you for free.**

- A generated **UPC** appears on your release page once it is assigned.
- Generated **ISRCs** appear on the release page once the release has been delivered to stores.

## When should I enter my own codes?

Enter your existing codes when you re-release music that is already out, for example when moving from another distributor. Keeping the **same ISRCs** lets stores keep your stream counts and playlist placements. See *Transferring Your Music to DistroVibe Without Losing Stream Counts*.

Rules for your own codes:

- Each ISRC must be unique. The same ISRC cannot be used on two different tracks.
- A UPC that is already used by another release cannot be reused.
- Use the codes exactly as they were issued.

If a release was taken down, rejected or never submitted, you can reuse its ISRCs on a new release.