I am not able link my organization account with the personal account.

The work/school account and the personal Microsoft account cannot be merged into a single account. They can only be used side by side.

To resolve the renewal/visibility issue for the DP-700 certification:

1. Confirm which account actually owns the certification
   • Sign in to Microsoft Learn with each login separately (first the work account, then the personal account) and check the Learn profile and Certifications section.
   • Use the guidance in “Confirm your login account” to verify that the DP-700 exam and certification are associated with the intended Learn profile. If the certification was earned while signed in with the organization account, it will not appear under the personal account automatically.
2. Fix Learn profile login associations
   • If the Learn profile is currently tied to the organization account and needs to be accessible with a personal account, sign in to the Learn profile and add the personal account as an additional login, then remove the work account if appropriate. This is the supported way to “unlink” from an ex‑employer or change which login is used, as described in the Q&A guidance for unlinking a Learn profile.
   • After adding the personal account as a login to the same Learn profile, the certifications in that profile will be visible when signing in with the personal account.
3. Handle the “account already linked” message
   • That message typically indicates that the personal and work accounts are already associated with the same Learn profile or that the work account is already linked somewhere. In that case, sign in directly to Microsoft Learn using each account and verify which one shows the DP‑700 certification.
   • If the DP‑700 certification is visible only under the organization account, perform the Learn-profile login change described above so the personal account can access the same profile.
4. If the certification is missing or renewal still fails
   • If the DP‑700 certification does not appear in any Learn profile even though the exam provider has confirmed a pass, follow the “Missing Exams or Certifications” steps: verify the correct login account, then contact Microsoft Credentials Support for assistance with missing credentials or renewal issues.
   • Use the Credentials Support contact channel referenced in the context to open a support request and provide exam details, both email IDs, and screenshots of the error/“account already linked” message.
5. Important limitations
   • Work/school and personal accounts cannot be merged into a single Microsoft account; only the Learn profile logins can be adjusted so that one profile (with all certifications) can be accessed by multiple login accounts.

References:

• Combining Microsoft accounts
• Missing Exams or Certifications
• Accessing your Learn profile
• Unlink MS.learn profile - Microsoft Q&A
• Missing certification while exam passed - Microsoft Q&A