Provider wants to get the list of the Office 365 subscriptions to be downgraded on Microsoft side in accordance with the instruction in the Knowledgebase article #112959 Office 365 Known Issue: User Seat Count downgrades do not work.
The script downgrade_report.php from the article throws error message like provided below:
Method downgrades_csv calling failed. Reason:Cannot find information for offer with ID B86AA4C7-5C7E-445b-8C97-227DBDE5787F. Please check application configuration file.
Offer mapping is not configured properly on the MOSI Gateway Host.
Follow the procedure in the Knowledgebase article #114227 [Office 365] Configuring Offer Mappings on Office 365 Gateway Host to solve the problem.