Hi Thanyapong,
1) Issue
- Requirement to reduce the number of D365 Finance & Operations license seats from 25 to 21 during subscription renewal
- Subscription is under an annual commitment
- Managed via Partner Center by a Microsoft partner
- Uncertainty about timing process and dependencies between Partner Center and Admin Center
- Risk of over-provisioning and unnecessary renewal costs
2) Reason
- The behavior is caused by Microsoft CSP (Cloud Solution Provider) subscription rules for annual term licenses
- In annual subscriptions license quantities are locked during the active term and changes (reductions) are only allowed at renewal
- License management is split across platforms:
- Partner Center controls billing and license quantity
- Customer Admin Center controls assignment to users
- This leads to a dependency where:
- Seat reduction must be initiated by the partner
- But user assignments must be adjusted beforehand to avoid license conflicts
- This can happen because billing capacity and user assignment are technically independent but operationally linked
3) Resolution
- Timing (critical)
- Reduce the license quantity at renewal time only
- Perform the adjustment before or on the renewal date (20th March)
- If not changed in time the subscription will automatically renew with the current quantity (25 seats)
Partner Center actions (Partner responsibility)
- Go to Partner Center → Customer → Subscription
- Edit the subscription quantity
- Change from 25 → 21 licenses
- Confirm the change before renewal date
- This controls billing and committed license count
Admin Center actions (Customer responsibility)
- Ensure no more than 21 users are assigned licenses before reduction
- Remove licenses from excess users (4 users in this case)
- This avoids assignment conflicts after reduction
- If more users than licenses remain assigned reduction may fail or create inconsistencies
Dependency rule
- Always reduce assigned users first → then reduce subscription seats
- License quantity cannot be reduced below currently assigned licenses
Best practice sequence
- Step 1 Remove licenses from 4 users in Admin Center
- Step 2 Validate only 21 active assignments remain
- Step 3 Adjust subscription quantity in Partner Center
- Step 4 Confirm change before renewal date
Risk management
- If no action is taken before renewal:
- Subscription auto-renews with 25 seats
- Customer is billed for full quantity for next term
- Mid-term reduction will not be possible
Additional recommendations
- Perform change a few days before renewal (not last day)
- Export user-license report before making changes
- Communicate clearly with customer about which users lose licenses
- Review if any users still require access via different license type (Team Member etc.)
Key takeaway
- Seat reduction is only possible at renewal for annual subscriptions
- Must be initiated in Partner Center but depends on user assignment cleanup in Admin Center
- Missing the renewal window results in full renewal at original seat count
*Licensing in Dynamics 365 Finance is dependent on multiple factors such as contract type, product configuration, user roles, partner agreements, and also country-specific regulations and availability, therefore the provided requirement lacks sufficient detail for an accurate and complete assessment, and a more comprehensive review of the specific licensing setup is required for precise guidance.
For a more detailed answer, please provide more information.
Rg,
Alexander
*Due to the complex and different possibilities of deploying Dynamics 365 I highly recommend not to setup the application without some expert/partner or support. (For more information contact me under anassl@inno-solutions.info or visit www.inno-solutions.de)
*The Information comes directly from the manufacturer or provider and are validated (not guaranteed) up to date of creation of the posting.
References:
- Microsoft Licensing Guide
- Microsoft Doc`s/Learn
