Hi, I am used this in Synchronization rules Outbound: IIF(CustomExpression(IsPresent(mail)),proxyaddressesCollection,Null()) => proxyaddress In the Full Sync Preview, Export Attribute Flow -> Outbound Synchronization Rules -> <Sync Rule Name> window that shows the attribute flows, the row for proxyAddress shows the following: Status : Error Data Source Attribute: (blank) Mapping Type: sync-rule-mapping - expression Metaverse Attribute: proxyAddressesCollection Initial Value: (blank) Final Value: (Unchanged) ... this is for an update to an existing group Work The function IIF with multivalued attribute? Thank you. I am sorry my English.Jess M Alvarez

Hi- You've got an extra in there - you want IIF(IsPresent(mail), proxyAddressesCollection, Null()). Note the lack of CustomExpression(). My Book - Active Directory, 4th Edition My Blog - www.briandesmond.com

Sorry, I have copied and pasted wrongly: I am used this in Synchronization rules Outbound: IIF(CustomExpression(IsPresent(mail)),proxyaddressesCollection,CustomExpression(Null())) => proxyaddress In the Full Sync Preview: The same flow with a single value is functioning properly. Failure to values multivalued. Thank you. Jess M Alvarez

This flow also work: CustomExpression(IIF(IsPresent(CloudMS),proxyAddressCollection,Null())) Thank you. Jess M AlvarezJess M Alvarez

This flow also work: CustomExpression(IIF(IsPresent(CloudMS),proxyAddressCollection,Null())) Thank you. Jess M Alvarez Jess M Alvarez Correct. There shouldn't be any CustomExpression() statenments embedded inline.My Book - Active Directory, 4th Edition My Blog - www.briandesmond.com

Sorry. I get error with attribute multivalued. ThankJess M Alvarez