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, 

KFF has hit errors during validation phase: JBO-FND:::FND_KF_STR_NO_REQUIRED_LABEL: FND-2742You must assign a required label GL_ACCOUNT to at least one segment.In application 101, key flexfield GL#, and structure ..., you need to assign required segment label GL_ACCOUNT to at least one segment.

Issue:

KFF has hit errors during validation phase: JBO-FND:::FND_KF_STR_NO_REQUIRED_LABEL: <MESSAGE><NUMBER>FND-2742</NUMBER><TEXT>You must assign a required label GL_ACCOUNT to at least one segment.</TEXT><CAUSE></CAUSE><ACTION></ACTION><DETAILS>In application 101, key flexfield GL#, and structure ..., you need to assign required segment label GL_ACCOUNT to at least one segment.</DETAILS><INCIDENT></INCIDENT></MESSAGE>

Resolution:

In the Functional Setpup Manager (FSM) search for the task name Define Chart of Accounts
Click on Define Chart of Accounts - Manage Chart of Accounts
Search for your Chart of Accounts via the Module General Ledger

Click on Manage Structure Button
Search for your Chart of Accounts using the Name
Click the pencil icon to edit.

In the Segment Labels section shuttle Natural Account Segment and Primary Balancing Segment across to Selected Labels.
Save an close and deploy the flexfield again.

Please refer below steps screenshots 

Labels not selected.

Please select the required label

 

Deploy the flexfield once finish above step

Deployment in porcess