Question:

Is it possible to use a multi-select field as a token in Vault?

Answer:

Yes, it is possible. But when using a multi-select field as a token, the generated name uses the first value of those selected. The first value is determined by alphabetical order on the value name (private key), not label.

If an admin wants to avoid this variability, there are two options.

• Avoid using multi-select fields in custom name formats.
• Instruct users to select a single value during document creation and additional values later. Vault generates the document name once during document creation. After the name is generated, selecting other values for a field used in the document name do not cause it to update. 

Related Documentation:

Vault Help Documentation: Multi-Select Fields as Tokens