https://generalledger-gl.blogspot.com/2019/05/approvalstatuscode.html
The APPROVAL_STATUS_CODE shows the approval situation:
R is Required: cannot be selected for posting
Z is Not required: can be selected for posting
A is Approved: can be selected for posting but cannot be modified
J is rejected: must be reapproved or modified
I is In process: must wait for the approval
everything else is an error status
