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Priority based scheduling in batch job

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Posted on by CU10121822-0

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Hi all,

I do research but not understood how the PBS will work in batch jobs.

Is we need to configure PBS in batch job?

Could you please provide me an example how it's worked in real world.

Pls advise, thanks

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Dynamics 365 Finance

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Deepak Agarwal 9,306 Super User 2026 Season 2 on at

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Hey,
if your question is more from technical or coding, You dont need special X++ code to make PBS work. Your SysOperation batch job will automatically participate in PBS scheduling
PBS will allocate processing capacity favouring the higher priority jobs first. Microsoft defines weighted processing across priorities, with Reserved Capacity and Critical receiving the largest share of resources.
There can be different consideration for different requirment on how you need to configure your batch jobs.
For more details you can read MS lean page.
Priority-based batch scheduling
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Martin Dráb 240,742 Most Valuable Professional on at

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Please get used to using a search engine to find information sources such as F&O documentation. In this case, please read Priority-based batch scheduling. Even if you still don't understand something after reading it, you'll have specific questions, instead of just saying that you have no idea and asking us to repeat what's written in the docs.
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CU-1234529-002 368 on at

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Hi,
PBS = Priority-Based Scheduling for batch jobs. Pure config, no X++ needed.
How it works: Each batch group has a priority (Low/Normal/High/Critical/Reserved capacity). The system doesn't run jobs strictly in order — it picks tasks probabilistically by weight (Reserved ~40%, Critical ~30%, High ~15%, Normal ~10%, Low ~5%), so high-priority jobs get picked far more often but low-priority ones still get a slice.
Setup:
System admin → Setup → Batch group → set priority
System admin → Inquiries → Batch jobs → optionally override priority per job
Need guaranteed capacity? System parameters → Batch global settings → Batch reserved capacity level
Example: Month-end GL posting = Critical, routine EDI imports = Normal, ad-hoc report exports = Low. Under load, GL posting finishes on time; exports just queue longer instead of blocking it.
Docs: Priority-based batch scheduling
CU10121822-0 1,056 on at

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Thanks for your response

As mentioned
“(Reserved ~40%, Critical ~30%, High ~15%, Normal ~10%, Low ~5%) ”

My question is -
1. Is these above percentage defined in the application any where?

Setup:
System admin → Setup → Batch group → set priority

2. Sorry not understand

" System admin → Inquiries → Batch jobs → optionally override priority per job
Need guaranteed capacity?
System parameters → Batch global settings → Batch reserved capacity level. "

Here you mentioned two paths - Kindly elaborate pls.

3. As mentioned " Example: Month-end GL posting = Critical, routine EDI imports = Normal, ad-hoc report exports = Low. Under load, GL posting finishes on time; exports just queue longer instead of blocking it.

Please let me know which job executed first, then next and so on…

Pls advise, thanks
André Arnaud de Cal... 307,097 Super User 2026 Season 2 on at

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Hi,

By reading your follow up questions, I wonder if you have read the documentation as shared above? It gives more context than just the short summary on this forum.
You can then understand that the percentages are fixed. You can only manage the priority on each batch job. Initially, it will be copied from the batch group, but you can override it.
This is also stated in the document. Start reading from the header Set the batch reserved capacity level.
This is also mentioned in the document. The batch framework picks from all priorities, but has available batch threads per priority. In case you have one batch with ‘Low’ to start at 10 AM each day and another batch with ‘Critical’ at the same time, when threads are available, they will start at the same time.
Anton Venter 21,227 Super User 2026 Season 2 on at

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@CU-1234529-002
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