https://learn.microsoft.com/en-nz/dynamics365/business-central/ui-troubleshoot-self-signup
Troubleshoot Issues with Self-Service Sign-Up - Business Central | Microsoft Learn
Learn about the most common reasons why you may not be able to complete the signup to Business Central, and ways to work around them.
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https://learn.microsoft.com/en-us/entra/external-id/self-service-sign-up-overview
Self-service sign-up - Microsoft Entra External ID | Microsoft Learn
Learn how to enable self-service sign-up for Microsoft Entra External ID. Allow external users to sign up for your applications themselves, customize the...
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https://mycitizens.cdgportal.com/main/infr/w_infr_wizard.php?wizscript=..%252F..%252Fmain%252Fecar%252Fw_ecar_sign_up_address.php&wiztitle=Sign-Up%2Bfor%2BService&ecaremode=Y&companyId=0210&instmode=I&infrSL=Y&infrprstEcareMode=Y&infrWinWidth=700&infrWinHeight=600&infrWinName=4153be01ecareSignUp
Citizens Telephone Cooperative - Sign-Up for Service
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