D365 error "The number of dimension values specified is different from the number set up in the active format for data entities"

Data management errors in D365:

In AX 2012 Source data format setup contained Financial dimension format for data imports. However in Dynamics 365 (D365), Data management doesn't have any setup for dimensions format. It has to be setup in General ledger > Chart of accounts > Dimensions > Financial dimension configuration for integrating applications

Select "Ledger dimensions integrations" as shown in the image. In Financial dimensions grid select dimensions from the list and arrange in the required format.

Check the order and use dimensions in the same order in source files for data imports.

This setup will resolve the error