Extension field of type Formatted Text and Multivalued List cannot be used on form templates and you get the following warning message: Properties of this field cannot be maintained.
Reproducing the Issue
You have already created an extension field of type Multi-value list.
- Go to the Customers work center.
- Select the Accounts view.
- Open a random Account.
- Click the Adapt button.
- Choose Edit Master Layout option.
- Hover over field ABC (ABC represents the name of the extension field of type multi-value list)
- Click the Properties icon.
- Click the Field Definition hyperlink.
- Select for example the Form Templates facet.
- You see that the facet appears empty and the following message is displayed Properties of this field cannot be maintained.
This is the standard expected system behaviour.
Extension field of type Formatted Text and Multivalued List cannot be used and added in form templates.
KBA , properties of this field cannot be maint , multi value list , multi value extension field , multi value list to form , BC-DWB-REP-EXT , Extensibility , Product Enhancement