Proof of transmission or receipt
A requirement of Article 6(2) of Spain's Royal Decree 723/2026: the written information given to the worker may be provided on paper or in electronic form, provided it is accessible, can be stored and printed, and the company keeps proof of its transmission or receipt. Spanish law, unofficial English rendering.
It is what puts a delivery on record: without the proof, the information was given but there is no way to show it.
Which obligations it carries
Keeping proof of transmission or receipt is a legal obligation for the Spanish employer, applicable from 5 October 2026, and it accompanies all the written information the decree requires.
What it is not
It is not a signed acknowledgement. The provision does not require any particular form: it requires the company to be able to demonstrate that it transmitted the information or that it was received. Nor is it an archive of the algorithmic system: what is kept is the record of the delivery, not the system.
The nuance almost nobody captures
The same article adds two conditions that are easily missed: the electronic form only counts if the worker can access, store and print it; and for workers with a disability or with borderline intellectual functioning the information must also be accessible and understandable.