Errors countered while attempting accounting. Engine encountered an nonrecoverable error during online accounting request 83. Details: see log file for more information

Error while doing the create accounting in fusion AP invoice cloud environment.

Error on screen:

Errors countered while attempting accounting. Engine encountered an nonrecoverable error during online accounting request 83. Details: see log file for more information

Error on Create accounting log file:

The accounting engine has encountered an irrecoverable error. (MODULE=xlaccoa_cache_coa) (PROBLEM=Error: accounting is not allowed for the Chart of Account: xxx COA Instance as it has one or more optional segments.)

Solution:

1. Navigate Setup and Maintenance
2. Implementation Project
3. Select the task Manage Chart of Accounts Structures and Manage Chart of Accounts Structure Instances tasks for Accounting Flexfield.
4. Make sure all segments are required, displayed and enabled.

Edit and enable the "Required" check box for all the segment.

save and close 

Deploy the chart of account to take effect the changes 

You can now try the created accounting,