You can use the web service functionality to remove the contact relationships from an account.
Use the following payload to delete all contact relationships for an account (where ABC represents an Account ID):
<n0:CustomerBundleMaintainRequest_sync_V1 xmlns:n0=" http://sap.com/xi/SAPGlobal20/Global ">
<Customer actionCode="04" contactPersonListCompleteTransmissionIndicator="true">
This will delete all available relationships between example account ABC and its contact persons.
Please note: The contact persons themselves are not deleted from the system.
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