If you want to complete the Higg FSLM (self/joint assessment only), there is no need to create a Gateway account. If you want to have your Higg FSLM self-assessment verified and obtain a verified assessment report (in other words, if you want vFSLM), you need to create a facility profile on the Gateway.
Note 1: only verified assessment data can be shared from Worldly (Higg FSLM) to the Gateway (no self/joint-assessment data).
Note 2: you can only create a facility profile on the Gateway after we launched in your countries/regions. An overview of where we rolled-out is available on the Gateway.