# FAQs User Registration and Login : FAQs a) I’ve not received my OTP * Either the learner-service is not working or failures at MSG91/Sendgrid side. * Also the limit exceeded in MSG91/Sendgrid. b) My login is not successful (SSU) If all users or majority of the users are impacted then it could be an issue with Keycloak or learner service. * Check for authentication failures b/w portal/app to keycloak * Check for user lookup failures b/w keycloak and learner service b) My login is not successful (SSO) * Could be an issue with state portal/state token. * State is not in whitelisted state list * School is not registered with us * Check for authentication failures b/w portal/app to keycloak * Check for user lookup failures b/w keycloak and learner service * Check for user read with external id failures in learner service c) I’m not able to register/create an account (SSU) * Check for failures b/w portal/app and user exists API * Check for authentication failures b/w portal/app to keycloak * OTP generation failures * OTP verification failures * User signup API (SSU) failures in learner service c) I’m not able to register/create an account (SSO) * Could be an issue with state portal/state token. * State is not in whitelisted state list * School is not registered with us * Check for authentication failures b/w portal/app to keycloak * Check for user lookup failures b/w keycloak and learner service * Check for user read with external id failures in learner service * OTP generation failures * OTP verification failures * Migrate User failure if already have an SSU account with same email or phone * User create(v3/create) API (SSO) failures d) I’m not able to migrate my account * Migrate User API failure e) I’m not able to merge * Merge User API failure f) Unable to update my profile page * User Update API failure in learner-service g) My location details are shown incorrectly in the progress exhaust/profile page * User Update API failure in learner-service --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://lern.sunbird.org/use/developer-guide/user-and-org-service/faqs.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.