Posting AP invoice transactions to the GL in PAS is permission based
To post, your account must have one of the following roles enabled:
Role: Company Admin, Accountant
Custom role with: AP invoices - Full access, Create and manage
When you post an accounts payable (AP) transaction to the General Ledger (GL) certain transaction record fields become locked and the transaction is permanently added to the master record book of all financial activities. This ensures the integrity and accuracy of the financial record.
To post AP transactions to the GL:
In the left-side navigation, click the dropdown menu
In the dropdown menu, select the name of the project that you want to post AP transactions for
In the left-side navigation Accounting menu, click AP invoices
On the AP invoices dashboard, click the Go to Posting button
In the Posting AP view, click the boxes to select the Trans. #s that you want to post to the GL
In the confirmation popup, review the details and optionally click the toggle to enable Post all transactions to a specific date instead, then click the Confirm and post button

Select the project, click AP invoices, and the click the Go to Posting button

Click the boxes to make your selections, then click the Post button

Review the details, then click the Confirm and post button