LTI External Tools custom parameters by João Victor Almeida - Friday, 4 October 2019, 1:03 AM Number of replies: 0 Hello,Does anyone knows how to properly use the Custom Parameters field? Already tried many ways and none of them seems to work. I am passing the username as a custom parameter like below:PS: I do receive the key as:"custom_lis_person_cpf"=>"{$USER}" Average of ratings: - Permalink Reply