SOLVED

How to change Azure AD B2C Domain Name

%3CLINGO-SUB%20id%3D%22lingo-sub-1467233%22%20slang%3D%22en-US%22%3ERe%3A%20How%20to%20change%20Azure%20AD%20B2C%20Domain%20Name%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1467233%22%20slang%3D%22en-US%22%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F698835%22%20target%3D%22_blank%22%3E%40MohammadAliItani%3C%2FA%3E%26nbsp%3BYou%20should%20add%20a%20Custom%20domain%20name.%20Switch%20to%20your%20B2C%20directory%20and%20look%20for%20custom%20domain%20names.%20Hope%20that%20helps.%26nbsp%3B%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%20lia-image-align-inline%22%20image-alt%3D%22msedge_r7vcLBB37a.png%22%20style%3D%22width%3A%20400px%3B%22%3E%3CIMG%20src%3D%22https%3A%2F%2Fgxcuf89792.i.lithium.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F198996iB660A9F641C002ED%2Fimage-size%2Fmedium%3Fv%3D1.0%26amp%3Bpx%3D400%22%20title%3D%22msedge_r7vcLBB37a.png%22%20alt%3D%22msedge_r7vcLBB37a.png%22%20%2F%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1470821%22%20slang%3D%22en-US%22%3ERe%3A%20How%20to%20change%20Azure%20AD%20B2C%20Domain%20Name%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1470821%22%20slang%3D%22en-US%22%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F698835%22%20target%3D%22_blank%22%3E%40MohammadAliItani%3C%2FA%3E%26nbsp%3BIt's%20the%20same%20when%20you%20create%20a%20new%20Office%20365%20tenant.%20Once%20created%20you%20cannot%20change%20the%20.onmicrosoft.com%20address%20as%20this%20represent%20the%20identity%20of%20your%20tenant.%3C%2FP%3E%3CP%3EIt's%20not%20possible%20to%20rename%20a%20tenant.%20It's%20only%20possible%20to%20add%20custom%20domains%20names.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1461486%22%20slang%3D%22en-US%22%3EHow%20to%20change%20Azure%20AD%20B2C%20Domain%20Name%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1461486%22%20slang%3D%22en-US%22%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%20lia-image-align-inline%22%20image-alt%3D%22MohammadAliItani_0-1592130968125.png%22%20style%3D%22width%3A%20400px%3B%22%3E%3CIMG%20src%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F198620iB9C00525368BCAC3%2Fimage-size%2Fmedium%3Fv%3D1.0%26amp%3Bpx%3D400%22%20title%3D%22MohammadAliItani_0-1592130968125.png%22%20alt%3D%22MohammadAliItani_0-1592130968125.png%22%20%2F%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-1461486%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EAzure%20AD%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E
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Occasional Visitor
2 Replies
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@MohammadAliItani You should add a Custom domain name. Switch to your B2C directory and look for custom domain names. Hope that helps. 

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Best Response confirmed by MohammadAliItani (Occasional Visitor)
Solution

@MohammadAliItani It's the same when you create a new Office 365 tenant. Once created you cannot change the .onmicrosoft.com address as this represent the identity of your tenant.

It's not possible to rename a tenant. It's only possible to add custom domains names.