The debtor role in a partner can have three different types - how do I use these types and what do they mean?

Types: Single debtor, Master, Child

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Master Data > Partner ... Roles ... Debtor ... General Tab

Types

Single Debtor
Information is registered as a single, independent debtor

Master-Debtor
Information is registered as a master-debtor.
Acts as a single debtor as well, but can also be referenced as master from child debtors.

Child-Debtor
Selecting this option allows selecting a corresponding master debtor in the box below.

A child debtor has no own account number and always has to point to a master debtor.
Optional: Deviating payment terms from master.