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This article shows how to invite an organisation that is already registered with you on the Platform for something else, e.g. SupplyChain. It is also the process that is used where a supplier is connected to another licensee.
This article assumes you know how to use the onboarding process. Refer to this article if you do not already know how to onboard an organisation.
When sending the Invite, you need to locate the contact email for the person who registered the organisation. In Platform locate the organisation contact and look at the Contact Details accordion.
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When their information has been submitted, you can validate it using the same processes used to onboard a new organisation. 