web

You’re offline. This is a read only version of the page.

News and Announcements icon

Dynamics 365 CommunityForums Customer experience | Sales, Customer Insights,... D365 tenant to tenant ...

Customer experience | Sales, Customer Insights,...

Suggested Answer

D365 tenant to tenant migration?

(0) Share

Report

Report

Posted on by Purtsi

Hola,

im doing D365 CE t2t migration one of my clients, but now i faced tricky problem when creating user mapping file for sandbox. Problem: currently same time we are doing O365 t2t activities and source tenant upn domain @xxx.com has not been moved yet to destionation tenant, so can i use eg. @xxxx.onmicrosoft.com what is destination tenant default upn or should i wait that @xxx.com address is successfully moved to tenant and then use that to create mapping file?

thanks

I have the same question (0)

All responses Img

All responses (1)

Answers Img

Answers (0)

Suggested answer

PerezAguiar Microsoft Employee on at

Like (0)

Report
Copy link

Link copied!

Hey Purtsi.

If you're doing a tenant to Tenant, that mapping file is important. However, it doesn't have to be with your custom domain (@xxx.com) You can use the @xxx.onmicrosoft.com as long as the value exists.

Best regards

Was this reply helpful? Yes No

Join the conversation

Helpful resources

Quick Links

Subscribe to this forum!

Stay up to date on forum activity by subscribing.

Leaderboard > Customer experience | Sales, Customer Insights, CRM

#1

#2

ManoVerse 161 Super User 2026 Season 1

#3

Last 30 days Overall leaderboard

Featured topics

Hide selecting Contact for potential customer when creating quote

Product updates

Dynamics 365 release plans