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How is MRP Requirement calculated?


Kandy Beatty
Captain II
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When looking at the MRP display, there is an item that is on there for a base qty of 5,000. I have a few questions in regards to it. 

There is a Sales Order for 5,000, however this item has no Safety Stock and no min/max order qty. There is also nothing on the replenishment tab. There is also nothing on the Vendor tab. So, how does Acumatica calculate this? I know it is demand based but if you do not want to carry 5,000 in a warehouse, how do you get this to not show up on the MRP display? Will a Purchase Order clear this?

 

 

Best answer by Debbie Baldwin

@kandybeatty49 - MRP is always trying to net supply and demand. You have zero on hand and a demand for 5000. So MRP is telling you to buy (this is a purchased item) 5000 to meet your demand. Once you create the Purchase Order for the 5000 (from the MRP Display) then it will not suggest this again. If this item is set up as an MRP item - it is always trying to net supply and demand to come up with a zero (0) balance at the end. 

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Debbie Baldwin
Acumatica Moderator
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  • Acumatica Product Manager
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  • Answer
  • March 1, 2023

@kandybeatty49 - MRP is always trying to net supply and demand. You have zero on hand and a demand for 5000. So MRP is telling you to buy (this is a purchased item) 5000 to meet your demand. Once you create the Purchase Order for the 5000 (from the MRP Display) then it will not suggest this again. If this item is set up as an MRP item - it is always trying to net supply and demand to come up with a zero (0) balance at the end. 


Kandy Beatty
Captain II
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  • Captain II
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  • March 1, 2023

Thanks @Debbie Baldwin 

I figured that was the answer but wanted clarification. I tried testing it in my local version and thought that is how it would work! I appreciate the feedback! 


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  • Semi-Pro I
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  • December 15, 2023
Debbie Baldwin wrote:

@kandybeatty49 - MRP is always trying to net supply and demand. You have zero on hand and a demand for 5000. So MRP is telling you to buy (this is a purchased item) 5000 to meet your demand. Once you create the Purchase Order for the 5000 (from the MRP Display) then it will not suggest this again. If this item is set up as an MRP item - it is always trying to net supply and demand to come up with a zero (0) balance at the end. 

Hi Debbie
I figured while doing my research to reply to this Post as it seems a very similar topic.

We currently have the situation where we have Stock but Customer Requested to either Drop-Ship it or Purchase it specifically for this Order despite having a sufficient Stock Level.

The Sales Order lines are marked for PO (one for Purchase to order, the other one as Drop-Ship)
Both lines don’t trigger in MRP.

Is that expected?


Debbie Baldwin
Acumatica Moderator
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  • Acumatica Product Manager
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  • December 15, 2023

@krausef77 - since you have enough stock it won’t suggest it. You will need to use the Create Purchase Order process screen for any lines marked for PO. (or Drop Ship)


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  • Semi-Pro I
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  • December 15, 2023
Debbie Baldwin wrote:

@krausef77 - since you have enough stock it won’t suggest it. You will need to use the Create Purchase Order process screen for any lines marked for PO. (or Drop Ship)

Interesting, is there a way to still get a hit somehow if those usecases come up or would that always need to go through the PO Processing screen?


Debbie Baldwin
Acumatica Moderator
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  • Acumatica Product Manager
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  • December 15, 2023

@krausef77 - if you didn’t have stock it would suggest, otherwise it’s always going through PO Processing. If you ended up with too many PO’s then you would get an MRP exception message. 


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  • Semi-Pro I
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  • December 15, 2023
Debbie Baldwin wrote:

@krausef77 - if you didn’t have stock it would suggest, otherwise it’s always going through PO Processing. If you ended up with too many PO’s then you would get an MRP exception message. 

Awesome, thank you for confirming!


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@Debbie Baldwin Will Blanket purchase order consider for MRP supply calculation?


Debbie Baldwin
Acumatica Moderator
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  • Acumatica Product Manager
  • 454 replies
  • October 24, 2024

@ranjithduraisamy72  - i believe Andre answered your question in another thread. This is a future enhancement. 


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