Unable to use function in MapOperatorIDfromClaim in OpenID authentication service
We are using Pega Platform 8.2.2
Implemented OpenID Connect SSO authentication service.
In the Operator identification section, I am unable to use toLowerCase() function for "Map operator Id from claim".
Tried the below
@toLowerCase('{signInName}')
Error is :
[ STANDARD] [ ] [thenticated:01.01.01] ( auth.oidc.OIDCClientHandler) DEBUG - Fetch operator from claim @toLowerCase('{signInName}') from received ID token claims [ STANDARD] [ ] [thenticated:01.01.01] (internal.auth.ExpressionHelper) ERROR - Failed to evaluate expression com.pega.pegarules.pub.PRRuntimeException: Cannot evaluate the expression: ClipboardPage or ClipboardProperty return type is not supported.
Please assist.