Hi,
Please check:
1 the quicklink name is caSE seNsitive
2 the iView that has the quicklink must be part of a role that has been assigned to the user
and this help document:
https://help.sap.com/saphelp_nw73/helpdata/en/49/3e2a1129002221e10000000a42189d/content.htm
Best regards,
Etay