# inv_start_date

**IRI:** https://folio.openlegalstandard.org/Ra1YZ2HiyZdVfoMJAbRlOx

## Labels

## Definition

"The starting date for the billing period.  
"

## Sub Class Of

- https://folio.openlegalstandard.org/RHfeijrOTjaF7qpuoGIGkR

**Deprecated:** False