Addressing clause 8.4 .3 d)

Answer:

The clause 8.4.3 d) requires organization to communicate to external providers its requirements for the external provider's interaction with the organization. This includes way of communication, way the product or service will be delivered by the provider, etc. This requirements are usually documented in contract or verbally between the organization and the external provider since documented information for this requirement is not mandatory.

For more information, see: How to control outsourced processes using ISO 9001 https://advisera.com/9001academy/blog/2015/05/05/how-to-control-outsourced-processes-using-iso-9001/