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Auto assign lot no. for released production order lines

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Posted on by AK-13051749-0

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Hello, can someone please provide some guidance on how to write the procedure for auto-assigning lot no. for released production order lines?

@YUN ZHU

I tried to follow the same procedures in the link below and adjust the code so that it checks the production order line instead of purchase line.

Dynamics 365 Business Central: How to create Item Tracking Lines automatically during an inbound transaction (Customization) | Dynamics 365 Lab

However, the lot no. did not get assigned on the item tracking lines page even though it got created in the reservation entry table.

Your help would be greatly appreciated! Thank you.

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Dynamics 365 Business Central

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Dhiren Nagar 2,876 Super User 2026 Season 1 on at

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Hi @AK-13051749-0,

There is a slight different when you do Item tracking or create reservation entries for Purchase and for Production Order Line.

Try following:

Source Type = 5406

Source Subtype = 3

Source ID = Prod. Order No.

Source Ref No. = 0

Source Prod. Order Line = Line Number of the output item, default is 10000 for first line.

I think changing the code slightly based on above parameter will solve the issue.

Please note that system has different ways of creating tracking and reservation for different source and demand documents.

You can check codeunit Item Jnl. Line-Reserve as reference to learn more about source.

Regards,

Dhiren.

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OussamaSabbouh 11,500 Super User 2026 Season 1 on at

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Hello,

This happens because Released Production Orders don’t use Reservation Entry directly to drive Item Tracking Lines: even though your lot is created in Reservation Entry, the Item Tracking Lines page only shows data created via Tracking Specification handled by Item Tracking Management. The purchase-order pattern you followed (like Yun Zhu’s example) doesn’t fully apply to production output. For production, the correct approach is to hook into the production output / journal flow and use ItemTrackingMgt APIs (Init/Insert Tracking Specification or CreateTrackingLines), not manual Reservation Entry inserts—once tracking specs are created properly, the Lot No. will appear automatically on the Item Tracking Lines page.

Regards,
Oussama Sabbouh

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AK-13051749-0 268 on at

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Thank you!

I was missing the Source Prod. Order Line = Line No. of the output item earlier. After adding that, the lot no. is now getting assigned automatically.

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Khushbu Rajvi. 21,573 Super User 2026 Season 1 on at

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Adding this: https://community.dynamics.com/blogs/post/?postid=1f84738c-2068-44c2-a5e4-27ce729d8345

https://learn.microsoft.com/en-us/dynamics365/business-central/walkthrough-tracing-serial-lot-numbers

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