If you are familiar with Dynamics GP, you are likely familiar with the confusion that can be caused by the "Posting Date" feature. Many customers have never opened the additional transaction date window in GP.
A customer calls and asks, "Why did my April invoice post to the GL in March? The invoice is clearly dated April 5!"
In addition to the confusion between Document Date and Posting Date, there is also the potential confusion caused by Transaction Posting Date vs. Batch Posting Date.
As if that isn't enough fun related to dates, things can get particularly interesting and challenging with automated integrations with Dynamics GP.
The issue typically comes up during month end. If an April 15 invoice is posted to April 16, it is usually not an issue and nobody notices. But if a March 31 invoice is posted to April 1, that can cause issues.
When a user is entering transactions manually in GP, they can review the invoice, know whether it should be posted to March or April, and set the posting date accordingly. But when an automated integration is importing data, it usually doesn't know which fiscal period a transaction belongs to. It has to rely upon a data field in the source data to tell it what the posting date should be.
That sounds easy enough, right?
Unfortunately, it isn't always easy.
Above is some sample data from an integration. A single invoice date is provided in the DOCDATE column. And a Batch ID of 2018-04-20 is provided, implying that the transactions are related to April 20. From this information, you could reasonably assume that the transactions should post to the 2018-04 fiscal period.
But what about this sample data.
This morning a concerned and upset customer called me asking "Why did our April invoices post to March??"
The batch ID of "20180401" indicated that these were April invoices and not March invoices. But as we know, Dynamics GP doesn't care about the batch ID when it comes to posting. The only date that matters is the Posting Date.
"But we don't import a posting date with our invoices. Only the Invoice (document) date!", the customer responded.
Good point. The source data only contained DOCDATE, and their SmartConnect map was only setup to import the invoice Document Date field.
So why did all of their invoices in the 20180401 batch get posted to March 31?
Well, as I mentioned above, you have to know whether GP is configured to post using the transaction posting date or the batch posting date. And to keep things confusing, it is possible to configure some batches to post using the transaction posting date, and have other batches post using a batch posting date.
So using the sample data above, why did the 20180401 batch post to March 31?
When importing transactions using eConnect (or SmartConnect, etc.), if the Batch ID specified for the transaction does not exits, eConnect will create the batch automatically. You don't need to specify additional options--it will just handle it for you.
And when your Dynamics GP batch type is set to use the Batch Posting Date, guess what eConnect uses as the default value for the Batch Posting Date? The document date.
So in the above sample data, the first invoice that is imported has a Document Date of March 31. So eConnect dutifully creates a new batch with a posting date of March 31. It then imports the invoices into that batch. And all of the invoices in that batch will post to March 31. Even if the invoice date is April 1.
Okay, so the customer just needs to fix the March 31 dates, right?
Perhaps it may be that simple. Maybe there was a bug in their source data.
But what about invoices that are generated on April 1, but related to March? What about a vendor invoice dated April 2 that is received from an external AP system on April 3, but was for a service performed in March? An integration won't know the invoice should be posted to March--the source data would have to provide an additional clue, such as a separate Posting Date or Fiscal Period field.
I've only encountered a few customers who were able to supply that fiscal period field separate from the document date field. In my experience, it is not common for a source system to know the fiscal period for a transaction--most only have a single transaction date.
So when designing a transaction import for Dynamics GP, make sure to consider what happens when transactions are dated the last day of the month or first day of the month, and whether transactions related to a prior fiscal period may show up in your source data. It can be surprisingly tricky.
Steve Endow is a Microsoft MVP in
Los Angeles. He is the owner of Precipio Services, which provides
Dynamics GP integrations, customizations, and automation solutions.
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