TheTenants associated with the Issuer being modified. Do not specify any value for this parameter if you wish to leave the ...

TheTenants associated with the Issuer being modified. Do not specify any value for this parameter if you wish to leave the Tenants associated with this Issuer unmodified.  Specify a null value if you wish to not associate any Tenants with this Issuer.  Otherwise, specify the Tenants to associate with this Issuer.