As soon as when you run the Post Timesheet job all the records will get populated in Invalid Transactions page with the status as New or Rejected.
If you found any record in rejected status you need to correct the record like resource inactive, project inactive, invalid entity, etc.
And once this is corrected you can run the PTF[Post Transactions to Financials] job if you select any data parameters only those records will be moved to Financials Table.
You can cross check by how many timesheets got posted and after running the PTF job compare the total records.
And check again if there are any invalid transactions and fix the issue and again run the PTF job.
If the Post timesheet job is schedule to run every 15 minutes after running the PTF and if there is anytime sheet approved during that time period will get posted and you will see a new transactions in the Invalid Transactions Page.
Once the above steps are completed run the Post to WIP job.
If there are large number of records apply date filters for each day and post it.
Once you post for that week time period just filter without any parameters and see if any record appears and post the missing ones.