3824727 - How can I find out that my SNCF loyalty card and SNCF advantage card are merged?

SNCF has recently set a kind of control over their tariffs for all ticket purchases through all distribution channels so the customers with both a loyalty card and an advantage card must merge their cards with the same email address in order to be able to purchase a reduced fare ticket and continue to benefit from the Grand Voyageur Program.

Can customer find out in Concur if his cards are merged? Does Concur show an alert to the user if the cards are not linked?

How can I find out that my SNCF loyalty card and SNCF discount card are linked? , KBA , CON-SRV-TRV-ADM-TVE , Travel Vendor Exclusions , CON-SRV-TRV-RAL , Rail , Problem