If there is no unique code for a contact in outlook, How can we use it in other apps? (2 Viewers)

[prabha_friend]

Especially in "Relational Database Systems" Like Ms Access or SQL Server

 

[sonic8]

Review the EntryId property of Outlook contacts.

 

[prabha_friend]

Review the EntryId property of Outlook contacts.

The Entry ID changes when an item is moved into another store, for example, from your Inbox to a Microsoft Exchange Server public folder, or from one Personal Folders (.pst) file to another .pst file. Solutions should not depend on the EntryID property to be unique unless items will not be moved. The EntryID property returns a MAPI long-term Entry ID. For more information about long- and short-term EntryIDs, search Microsoft Learn for PidTagEntryId.

 

[sonic8]

What do you want to do?
In most cases the limited uniqueness of the EntryId is enough.
If it is just about uniqueness per se, you can also store the EntryId of the information store containing the contact.
If you need to track items which may be moved across different information stores, you can create a custom property and store an unique Id in there, which you define. - I think, this works, but you should verify that custom properties will be moved across different stores.

 

[prabha_friend]

What do you want to do?
In most cases the limited uniqueness of the EntryId is enough.
If it is just about uniqueness per se, you can also store the EntryId of the information store containing the contact.
If you need to track items which may be moved across different information stores, you can create a custom property and store an unique Id in there, which you define. - I think, this works, but you should verify that custom properties will be moved across different stores.

Actually I am building a software tool for a Milk Vendor. In India, still many doesn't have a mobile phone at least, then only email.

I am thinking of the following:
Cstr(replace(".",cdbl(Now(),""))
But the problem is Outlook lacks Replace() in the auto-value property of a custom form