Difference between storage type and storage bin level replenishment

[former_member804409]

Hello experts,

I have been doing hands on to understand difference between storage type level and storage bin level replenishment.However I have come across a few queries that I would like to present here for member's views and suggestions-

Replenishment activated at storage type level (This has got fixed bin putaway strategy)

Product A is assigned to two fixed bins B1 and B2.

In product master storage type tab max and min qty have been maintained.

When I run replenishment system proposes a replenishment qty of 24 EA and on creating warehouse task,it is only considering bin B2 and creates replenishment task for qty 22 EA (2 EA is missing but I am not focusing on it).

Questions:1 ) Does that mean for storage type level replenishment system always considers the first bin it finds for the product irrespective of capacity of bin?

2) If capacity is considered, where do I maintain bin capacity?

3)If I can make system consider bin capacity even for a storage type level replenishment strategy then what is the difference between storage type and storage bin level replenishment?

Regards,

Khushboo

[Former Member]

Hello,

1) + 2) if you maintain bin capacity in /scwm/LS02 and maximum storage type quantity in warehouse product master/storage type tab, system tries to create warehouse task up to what comes first.

In case the bin capacities B1+B2 is 20EA, you can have 24 EA maximum qty on storage type level, but it will never be reached.

On the other side if max qty for storage type is 24 EA and you have unlimited bin capacity, system will never put the stock into the other bin.

You can maintain the order of bins through bin sorting.

3) Having replenishment on storage type level, you can have system to assign fixed bins automatically up to the maximum allowed number of bins (e.g. in specific storage section). Your bins can have variable capacities.

I hope this will be helpful.

Petr

[former_member804409]

Thanks Petr for prompt response. Let me try explaining with real time figures-

Storage bin capacity for bin B3= 25 Existing stock=18 EA,Bin capacity for B1=40  Existing stock =23 EA.

Maximum capacity in product master for storage type =65 EA, Min=45 EA.

Capacity Consumption figure =1

"On the other side if max qty for storage type is 24 EA and you have unlimited bin capacity, system will never put the stock into the other bin"

But I have a limited bin capacity and system is still creating WT for only B3.I get your point ,replenishment qty =65-41=24EA.and its putting 22EA in B3 (40-18) .But for remaining 2 EA it should go to B1 bin which its not.

"3) Having replenishment on storage type level, you can have system to assign fixed bins automatically up to the maximum allowed number of bins (e.g. in specific storage section). Your bins can have variable capacities. "

I have maintained Max no of bins as 2 in product master storage type tab.Still system is not going to bin B1 for remaining 2 qty.

Not so clear with difference between storage type and storage bin level replenishment.

Regards,

Khushboo

[Former Member]

Hi,

could you please describe the quantities for B1, B2 and B3 one more time? I am afraid your real figures are mixed a little.

The capacity consumption as we discussed earlier should be maintain in product master at unit of measures tab. I assume when you say bin capacity = 25 EA you mean the bin capacity is 25 points and 1 EA consumes 1 capacity points.

Petr

[former_member804409]

Yes you are right capacity consumption for bin B3 = 25 Points and 1 EA consumes 1 capacity point.

There are only two bins B1 and B3

Bin B1

Total Capacity consumption in storage bin master= 40

Capacity consumption in unit of measure tab in product master =1

Bin B3

Total Capacity consumption in storage bin master= 25

Capacity consumption in unit of measure tab in product master =1

Max qty in product master=65 ea

Min qty in product master= 45 EA

Current stock in bin B1=23 EA

Bin B3= 18 EA

Replenishment is at storage type level.Both bins belong to same storage type.

And I just noticed I made a mistake in above post,actually calculation for bin B3 is not correct either.I only have an open capacity of 25-18=7 ea,not sure why it is proposing to put away  22EA in bin B3.Why is it not calculating correct capacity again?

Regards,

Khushboo

[Former Member]

Capacity check in your storage type master is "1", OK?

System should allow you to putaway only 7 EA into B3.

Could you please post a WT log here?

[former_member804409]

Hello Petr,

Capacity check is 4 in storage type(I think this is what we discussed earlier if I don't want to consider weight and volume ).

I read standard document and it tells me if I completely want to turn off capacity check then I should use 4.Capacity check 1 will consider capacity key figure based on product.So for a fixed bin strategy I should always maintain capacity check 1 but earlier we agreed upon using capacity check 4 if I don't want system to consider weight and volume.

Regards,

Khushboo

[Former Member]

Hello,

no, please use "1" - that is correct.

Sorry for the confusion, I corrected myself in our previous discussion.

Petr

[former_member804409]

I kept capacity check 1 this time and it seems system is able to go and check capacity for bin ,although not coming to right calculation. Can you take a look ?

Existing stock in bin is 18 EA and total capacity in bin is 25 ,capacity consumption in unit of measure tab of product master is 1.It shouldn't allow 20 EA in this bin.

Regards,

Khushboo

[Former Member]

You probably need to build the stock in the bin again so the system can maintain the actual free capacity consistently.

Or you can create a Z_report based on SAP Note to recalculate the actual capacity.

1532672 - Correction of capacity data

[former_member804409]

yes petr ,you are right,I emptied the bin and executed replenishment this time it worked fine.I think its because wrong capacity check was activated system did not update "cap. used" field in storage bin master.

Coming back to the basic question .What is the difference between storage bin level and storage type level replenishment.I can get the desired result from both.The only difference I see is when I execute replenishment, in case of storage bin level, I have the privilege to choose which bins I want to replenish whereas in storage type level it will be executed for all bins of that product at once.

Any other thing you can point out?

Regards,

Khushboo

[Former Member]

yes, I think it is a question of how much detailed focus you want to have on the replenishment.

At one of my client we had storage sections defined by material group and users did not want to spend extra time on specifying the fixed bin and at the same time there was a requirement on maximum number of bins for a given product. Then the storage type level makes sense - system assigned fixed bins automatically.

In case you have few products, which do not fluctuate much and you can afford to spend time on each's master data, you can be more comfortable with bin level.

Regards,

Petr

[former_member804409]

Thanks Petr for being so prompt and helpful.

one more thing I want to ask is use of "Plnd Min. Replen. Qty","Planned Maximum Qty" ,"Planned Minimum Qty" and "Thrshld Addn" in storage type tab of product master. While executing replenishment, i want to be able to display bins on % capacity basis.

Is there any document I can read to understand each?

Regards,

Khushboo

[Former Member]

Hi,

the fields "Planned" are used for proposed values from slotting run.

The Trshld Adddn in storage type master is very useful when you want to avoid situation of being putaway tasks split amond too many bins. It simply says - for putaway use only such bin, which has at least that many percent of available capacity.

Regards,

Petr

[former_member804409]

thanks Petr for the information.