SAF Inventory file - JPK_MAG
This article explains how to set up Microsoft Dynamics 365 Finance to configure and generate a SAF Inventory file - JPK_MAG for legal entities that have a primary address in Poland.
SAF Warehouse Stock File (JPK_MAG) is a standardized electronic format that enables businesses to submit detailed records of their warehouse inventory movements to Polish tax authorities in a structured and consistent manner. The file that is generated in this format, SAF Inventory file - JPK_MAG, contains information about stock entries, withdrawals, and transfers. Therefore, it facilitates transparency and compliance during audits or tax inspections.
A SAF Inventory file - JPK_MAG must be submitted whenever Polish tax authorities request one. It must be submitted electronically through the Polish tax authority's portal.
Setup
Before you can generate a SAF Inventory file - JPK_MAG, you must complete the following setup.
Import ER configurations
In Finance, import the following ER configurations from Dataverse. Learn more about how to import ER configurations in Import Electronic reporting (ER) configurations from Dataverse.
| ER configuration name | Type | Description |
|---|---|---|
| Standard Audit File (SAF-T) | Model | The common data model for different audit reports. |
| Standard Audit File model mapping | Model mapping | The model mapping that provides general source mapping for several electronic reports for Poland. |
| SAF Poland | Format | The XML format that represents a parent format for several JPK formats for Poland. |
| Inventory (PL) | Format | The XML format that represents Inventory SAF-T Poland - JPK_MAG. |
Import the most recent versions of the configurations. The version description usually includes the number of the Knowledge Base (KB) article that explains the changes that were introduced in the configuration version.
Important
After all the ER configurations from the previous table are imported, set the Default for model mapping option to Yes for the Standard Audit File model mapping configuration.
Set up the ER format in General ledger parameters
To set up the ER format in General ledger parameters, follow these steps.
- Go to General ledger > Ledger setup > General ledger parameters.
- On the Standard Audit File for Tax (SAT-T) tab, in the SAF Inventory field, select the Inventory (PL) ER format.
Generate a SAF Inventory file - JPK_MAG
To generate a SAF Inventory file - JPK_MAG, go to General ledger > Inquiries and reports > Standard Audit File for Tax (SAF-T) > SAF Inventory, set the following parameters, and then select OK.
| Parameter | Description |
|---|---|
| From date | Specify the first date to export reporting data for. |
| To date | Specify the last date to export reporting data for. |
| Authority identification | In the list, select the identifier of the tax authority to use in the export file. |
| Warehouse | Specify the warehouse to export transactions for. |
Using a batch job to generate a SAF Inventory file - JPK_MAG
A SAF Inventory file - JPK_MAG for a long period, such as a month or a quarter, can include a large amount of data and take a long time to be generated. Therefore, we recommend that you use a batch job. The dialog box for every SAF report includes a Run in the background tab where you can set up report generation in batch mode. Set the Batch processing option to Yes. Learn more about batch processing in Batch processing overview.
To review batch jobs or find a generated file, follow these steps.
- Go to Organization administration > Electronic reporting > Electronic reporting jobs.
- Find a line that is related to your job, and then select Show log. If nothing is shown, no messages were produced when the file was generated.
- To view a file, select Show files, find the file that you need, and then select Open.
When an electronic report is generated in batch mode, you can find related batch information and the generated output file as an attachment by going to Organization administration > Electronic reporting > Electronic reporting jobs.
Learn more about how to configure a destination for each ER format configuration and its output component in Electronic reporting (ER) destinations.