When recording a receipt in Inventory if we need to delete the receipt, the receipt still posts to payables and ledger. It is not showing in the Receipt window.

If you delete a receipt, indeed it will no longer show in the Receipt window. Amounts would be written to GL. If you performed Day End in Inventory prior to deletion, information would first have been transferred to AP. After deleting a receipt, it likely will appear in Transaction History.

What are you wanting to do?

We entered the same receipt twice, both were posted, we deleted one prior to marking as complete, however both transactions went to AP and to the GL. Are you saying that we have to correct the error through adjustments by quantity and amount?

Re: period end
When we run period end we do not have the option of selecting the date of the period end, the current date appears.

When a receipt is posted, this immediately writes to the batch file that will get retrieved into GL. You are correct that even though the receipt was deleted, you will need to make adjusting entries in the GL if that IC subledger batch was posted in GL.

If you have a version of Adagio Inventory that has a Day End Processing function, this has to be run in order to send invoices to AP. Simply posting a receipt does not create an AP invoice batch.

You do not have a choice of selecting the date of Period End - indeed this is correct. If you want to run Period End as of a particular date, you must sign into Adagio Inventory using the date desired for Period End. This sign-in 'session' date is used for the Period End date.